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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: ssh
Announcement-ID: SuSE-SA:2001:04
Date: Friday, February 16th, 2000 18:00 MET
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
Vulnerability Type: possible remote root compromise
Severity (1-10): 9
SuSE default package: yes, no (openssh is default after SuSE-6.3)
Other affected systems: Unix systems with sshd running
Content of this advisory:
1) security vulnerability resolved: ssh
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
SuSE distributions contain the ssh package in the version 1.2.27. No
later version is provided because of licensing issues. SuSE maintains
the 1.2.27 version in a patched package. Three new patches have been added
that workaround three independent security problems in the ssh package:
a) SSHD-1 Logging Vulnerability (discovered and published by Jose Nazario,
Crimelabs). Attackers can remotely brute-force passwords without
getting noticed or logged. In the ssh package from the SuSE
distribution, root login is allowed, as well as password
authentication. Even though brute-forcing a password may take an
enormous amount of time and resources, the issue is to be taken
seriously.
b) SSH1 session key recovery vulnerability (by (Ariel Waissbein, Agustin
Azubel) - CORE SDI, Argentina, and David Bleichenbacher). Captured
encrypted ssh traffic can be decrypted with some effort by obtaining
the session key for the ssh session. The added patch in our package
causes the ssh daemon to generate a new server key pair upon failure
of an RSA operation (please note that the patch supplied with Iván
Arce on bugtraq on Wed, 7 Feb 2001 has been corrected later on!).
c) In 1998, the ssh-1 protocol was found to be vulnerable to an
attack where arbitrary sequences could be inserted into the ssh-1
protocol layer. The attack was called "crc32 compensation attack", and
a fix was introduced (crc compensation attack detector in the ssh -v
output) into the later versions of ssh. Michal Zalewski discovered
that the fix in its most widely used implementation is defective. An
integer overflow allows an attacker to overwrite arbitrary memory in
the sshd process' address space, which potentionally results in a
remote root compromise.
There are easy resorts that can be offered:
a) switch to openssh (please use the openssh packages on ftp.suse.com from
the same update directories as the ssh package update URLs below indicate).
openssh is a different implementation of the ssh protocol that is
compatible to the protocol versions 1 and 2.
Openssh Version 2.3.0 does not suffer from the problems listed above.
Versions before 2.3.0 are vulnerable to other problems, so please
use the updates from the update directory on the ftp.suse.de ftp server.
See section 2) of this announcement for the md5sums of the packages.
b) upgrade your ssh package from the locations described below.
<p> Download the update package from locations desribed below and install
the package with the command `rpm -Uhv file.rpm'. The md5sum for each
file is in the line below. You can verify the integrity of the rpm
files using the command
`rpm --checksig --nogpg file.rpm',
independently from the md5 signatures below.
<p> SPECIAL INSTALL INSTRUCTIONS:
==============================
If you run a sshd (secure shell daemon) server on your system, then the
daemon process must be restarted for the update package to become active
after installation of the update rpm.
You can do this easily with the command (ran as root):
kill -15 `cat /var/run/sshd.pid`
After this, you can start the daemon using the command
rcsshd start
It should be possible now to log on again to your server as usual. Please
consult the syslogs in /var/log if this is not the case.
Warning: killing all instances of sshd on a system might render the system
inaccessible from remote, especially if secure shell is your only
method to access the system. Be careful to not lock yourself out.
<p> Note: The packages on our German ftp server have been built again to
correct one of the patches. The package for the 6.1-i386 distribution
has finished building a few minutes ago and uses the same name as the
build from Wednesday. Use the --force commandline option for the rpm
command if you have used the package that was published before the
release date of this announcement.
<p> i386 Intel Platform:
SuSE-7.1
ftp://ftp.suse.de/pub/suse/i386/update/7.1/sec2/ssh-1.2.27-226.i386.rpm
ae68bf3ac28b5e81f9c5f2a1d1d8980e
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/7.1/zq1/ssh-1.2.27-226.src.rpm
d332e662daff71ff7d10cf4d962b6933
SuSE-7.0
ftp://ftp.suse.de/pub/suse/i386/update/7.0/sec1/ssh-1.2.27-220.i386.rpm
f88b339dea96ef186e70872ce9444c24
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/7.0/zq1/ssh-1.2.27-220.src.rpm
93ca5fc96c103a5f9adee16cb319195c
SuSE-6.4
ftp://ftp.suse.de/pub/suse/i386/update/6.4/sec1/ssh-1.2.27-86.i386.rpm
3f1b41116b7c7d63c791de4fdca9d1ee
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.4/zq1/ssh-1.2.27-86.src.rpm
3a8d859f2ae9751852339c642b07b4cf
SuSE-6.3
ftp://ftp.suse.de/pub/suse/i386/update/6.3/sec1/ssh-1.2.27-86.i386.rpm
3f1b41116b7c7d63c791de4fdca9d1ee
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.3/zq1/ssh-1.2.27-86.src.rpm
3a8d859f2ae9751852339c642b07b4cf
SuSE-6.2
ftp://ftp.suse.de/pub/suse/i386/update/6.2/sec1/ssh-1.2.27-210.i386.rpm
b29822198dc6430167465706965e3499
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.2/zq1/ssh-1.2.27-210.src.rpm
4a2130635f702bb266748b9e4838877a
SuSE-6.1
ftp://ftp.suse.de/pub/suse/i386/update/6.1/sec1/ssh-1.2.27-210.i386.rpm
17f281262edd689d9861c099489cbcc6
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.1/zq1/ssh-1.2.27-210.src.rpm
5e12e0086f61bba2f37c4ccbc4282a92
<p><p> Sparc Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/sec1/ssh-1.2.27-221.sparc.rpm
e1545287f954d089707c55a66598c318
source rpm:
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/zq1/ssh-1.2.27-221.src.rpm
f37a8b3addaf70711d91f6a3f788a8b3
<p><p> AXP Alpha Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/axp/update/7.0/sec1/ssh-1.2.27-221.alpha.rpm
77bd0dcda5df929fba07d56de2bf3399
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/7.0/zq1/ssh-1.2.27-221.src.rpm
77305ae844c9b68e8af559ccf81417e8
SuSE-6.4
ftp://ftp.suse.de/pub/suse/axp/update/6.4/sec1/ssh-1.2.27-86.alpha.rpm
7a8d7086c8b99822b020f3c9d0e4764e
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/6.4/zq1/ssh-1.2.27-86.src.rpm
e75660e54edc2cf38086b4de3da91881
SuSE-6.3
ftp://ftp.suse.de/pub/suse/axp/update/6.3/sec1/ssh-1.2.27-212.alpha.rpm
671761326c11c9eac50c3d992b550bdf
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/6.3/zq1/ssh-1.2.27-212.src.rpm
5472b658aac01bea8667769a04e0e92d
<p><p> PPC Power PC Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/sec1/ssh-1.2.27-220.ppc.rpm
ec7274c8a88b6ce5420c91da0622f94c
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/zq1/ssh-1.2.27-220.src.rpm
1ae9f7cf4c7099f5cad8cb0ccc8f3e5d
SuSE-6.4
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/sec1/ssh-1.2.27-86.ppc.rpm
fc3cb2e3b927c7ffc5e8374e183f860e
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/zq1/ssh-1.2.27-86.src.rpm
439abdfb6f56e2c0d3880cddd103935f
<p><p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- The openssh package URLs and md5sums:
ftp://ftp.suse.de/pub/suse/i386/update/7.1/sec1/openssh-2.3.0p1-5.i386.rpm 3687c385e3e8f6e845c17518c12dd61b
ftp://ftp.suse.de/pub/suse/i386/update/7.1/zq1/openssh-2.3.0p1-5.src.rpm 3cf3a1f652d92d66e70bfc9c40c0eb38
ftp://ftp.suse.de/pub/suse/i386/update/7.0/sec1/openssh-2.3.0p1-0.i386.rpm ce12abcff3dec118ceabe62e6cd1e090
ftp://ftp.suse.de/pub/suse/i386/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm 3a7cf864f695a9f3ec2dd0bf6cc7e161
ftp://ftp.suse.de/pub/suse/i386/update/6.4/sec1/openssh-2.3.0p1-0.i386.rpm 3219bf7853c2c27056ec502b5fd3345c
ftp://ftp.suse.de/pub/suse/i386/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm 82a18d49a9a98942417258ffcd7a4800
ftp://ftp.suse.de/pub/suse/i386/update/6.3/sec1/openssh-2.3.0p1-0.i386.rpm 3219bf7853c2c27056ec502b5fd3345c
ftp://ftp.suse.de/pub/suse/i386/update/6.3/zq1/openssh-2.3.0p1-0.src.rpm 82a18d49a9a98942417258ffcd7a4800
ftp://ftp.suse.de/pub/suse/axp/update/7.0/sec1/openssh-2.3.0p1-0.alpha.rpm b924315c09cb990009b24d3c1093e142
ftp://ftp.suse.de/pub/suse/axp/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm 6339a4f2a4982ba2e6b943a182d02420
ftp://ftp.suse.de/pub/suse/axp/update/6.4/sec1/openssh-2.3.0p1-0.alpha.rpm 61da28e2695d8f4a4b1c6300d867e6b6
ftp://ftp.suse.de/pub/suse/axp/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm 9e8e5af8b890f2a18e244da1c94be796
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/sec1/openssh-2.3.0p1-0.ppc.rpm 72f7c339991e54a476585012423dda62
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm 749ccc55396944ad43c1977e55903958
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/sec1/openssh-2.3.0p1-0.ppc.rpm e08ec87634dfd0dd76d18886d04ebd4b
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm 95820e1934a5586c8d73719957972d7c
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/sec1/openssh-2.3.0p1-0.sparc.rpm 8ed7a34fec7bcc6c658809effe20fd82
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm c551925107c7000fa32556dbe4a4fad4
<p> - Linux kernel upgrade.
Several security flaws have been found in the linux-2.2.x kernel versions.
The only suitable workaround is to upgrade to a newer kernel version.
SuSE provides kernels that have been expanded with several dozen device
drivers that are not included in the standard main stream kernel.
While working on the kernel update packages for our distributions, more
security problems were discovered. Currently, several persons audit code
in the kernel, so that more problems are expected to be discovered in the
very near future.
Since kernel updates are very time-consuming on behalf of the system
administrator, we decided to not publish a new kernel package
each week. Instead, the new kernel packages with all known security bugs
fixed will be published by the midth/end of next week.
In the meanwhile, administrators who require immediate updates, please go
to ftp.kernel.org (or one of its mirrors, respectively) and get Alan Cox'
prepatches for the 2.2.19 version of the Linux kernel. The directory
usually is /pub/linux/kernel/people/alan/2.2.19pre, his latest patch is
pre-patch-2.2.19-13.gz. This patch fixes all currently publically known
security problems in the Linux v2.2 kernel. For those who are not
experienced in patching and installing kernels, we recommend to wait
for the release of the SuSE Linux kernel update packages.
<p> - From SuSE-SA:2001:03 (bind8): The sparc update packages were pending
because of build bottlenecks. The URLs to the update packages and the
md5sums are as follows:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/bind8-8.2.3-39.sparc.rpm
c7e2a95bd4b90d03207ffc3a9880c36c
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/bind8-8.2.3-39.src.rpm
5d4d4b608f2a8a3e61f7dc6917254f4f
<p><p> - bind: The bind package version 4.x has been found vulnerable to multiple
security problems that were discussed and published in public security
forums. See http://www.securityfocus.com/templates/advisory.html?id=3051
for more information. SuSE provides update packages for the bind nameserver
in version 4 for all distributions and architectures.
We also hereby announce that the bind package (bind-4.x; the bind
nameserver in version 8 is contained in the bind8 package) will be
discontinued in future versions of the SuSE Linux Distribution. We
recommend to migrate to bind in the 8.x or 9.x series.
There will be a seperate security announcement for the bind (4.x) package
by Monday, February 19th 2001. In the meanwhile, get the md5sums from the
URL ftp://ftp.suse.de/private/draht/bind4-checksums . It is signed.
- More announcements are following this one. (mysql, tmpfile races, ...)
Please read (this) section 2) in the announcements carefully.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: bind8
Announcement-ID: SuSE-SA:2001:03
Date: Tuesday, January 30th, 2000 23:40 MEST
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0, 7.1
Vulnerability Type: remote root compromise
Severity (1-10): 9
SuSE default package: no
Other affected systems: all systems using bind, versions before
8.2.3-REL
Content of this advisory:
1) security vulnerability resolved: bind8
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
bind-8.x in all versions of the SuSE distributions contain a bug in the
transaction signature handling code that can allow to remotely over-
flow a buffer and thereby execute arbitrary code as the user running
the nameserver (this is user named by default on SuSE systems).
In addition to this bug, another problem allows for a remote attacker
to collect information about the running bind process (this has been
found by Claudio Musmarra <a9605121(a)unet.univie.ac.at>).
For more information on these bugs, please visit the CERT webpage at
http://www.cert.org/advisories/CA-2001-02.html and the bind bugs
webpage at http://www.isc.org/products/BIND/bind-security.html .
The problem is existent in the upcoming SuSE distribution 7.1 that
will be available by February 10th in the CD/DVD version.
There exists no reasonable method to circumvent the problems other than
to update the package as described below.
<p> Please choose the update package for your distribution from the
URLs listed below and download the necessary rpm files. Then,
install the package using the command `rpm -Uhv file.rpmŽ. rpm
packages have an internal md5 checksum that protects against file
corruption. You can verify this checksum using the command
(independently from the md5 signatures below)
`rpm --checksig --nogpg file.rpm',
The md5 sums under each package are to prove the package authenticity,
independently from the md5 checksums in the rpm package format.
SPECIAL INSTALL INSTRUCTIONS:
==============================
If you run a bind8 nameserver on your system, please update the package
immediately. In order for the updated package to become active, the
nameserver process "named" needs to be restarted. Do this using the
command
`rcnamed restartŽ
as root after performing the rpm command as shown above. Afterwards,
check for the running daemon using the ps command as `ps auxŽ. The
named process should show a new starting time. Repeat the
`rcnamed restartŽ command if the nameserver shut down too slowly to
release the socket for the new server.
<p> i386 Intel Platform:
SuSE-7.1
ftp://ftp.suse.com/pub/suse/i386/update/7.1/n2/bind8-8.2.3-92.i386.rpm
e9b354dbd96f6216b9da01f2b3a0a166
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.1/zq1/bind8-8.2.3-92.src.rpm
f77200a6c476b58980f68b5db3fd7c4b
SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/bind8-8.2.3-61.i386.rpm
4fdee7483fce85f2a31a1a53d2b01b76
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/bind8-8.2.3-61.src.rpm
e53896d1ddfb405774a492469621af02
SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/bind8-8.2.3-0.i386.rpm
bb25cb6ba2e54bf929f61c14b3663b3e
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/bind8-8.2.3-0.src.rpm
1033f0df4b747f1d2758fdae69a5fa17
SuSE-6.3
ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/bind8-8.2.3-0.i386.rpm
73fe798d4afb87beecb2546ecf076f64
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/bind8-8.2.3-0.src.rpm
dfe4e452d8d0a0a8ff0994e514353b3f
SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/bind8-8.2.3-0.i386.rpm
48b45d14724e852810de130864ab8281
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/bind8-8.2.3-0.src.rpm
22ca23ed06739effc887370bfef2d83e
SuSE-6.1
ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/bind8-8.2.3-0.i386.rpm
fc9cd0970c15246599f90ce1f5955f29
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/bind8-8.2.3-0.src.rpm
6cdf2e5c3a9a25ca98f8916de677cb70
SuSE-6.0
Please use the SuSE-6.1 packages for the SuSE-6.0 distribution on the
i386 Intel Platform.
<p><p> AXP Alpha Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/axp/update/7.0/n1/bind8-8.2.3-39.alpha.rpm
84014e0f19e52a09b90897e18d8eb774
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/bind8-8.2.3-39.src.rpm
99df556319e0c232d78cdb69d5d28ac0
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/bind8-8.2.3-0.alpha.rpm
2e2a8f6c3c6838a7fd49bd7926fc3de3
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/bind8-8.2.3-0.src.rpm
9b0c2e8469f597f43010a125af8f54fe
SuSE-6.3
ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/bind8-8.2.3-0.alpha.rpm
0194fc4461ef902c46b75f28fa8f2ef6
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/bind8-8.2.3-0.src.rpm
dffa2d911f6dae9092301bd8ad4f026f
SuSE-6.1
ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/bind8-8.2.3-0.alpha.rpm
ebd233233829eef3d73db7d0a828c35a
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/bind8-8.2.3-0.src.rpm
582e7985719d3f7da86a77349aa1611d
<p><p> PPC Power PC Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/bind8-8.2.3-39.ppc.rpm
b9354106b0b89edf8f1883b2ea50e656
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/bind8-8.2.3-39.src.rpm
534d84e900c6edf3fa8f2ef546d08c0a
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/bind8-8.2.3-0.ppc.rpm
5c3a00ebd3ddb0388e460673bfec88d0
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/bind8-8.2.3-0.src.rpm
418ae09b44885199f4a4403748b6ab2b
<p> Sparc Platform:
Due to build bottlenecks, the update package for the sparc platform
(SuSE-7.0 distribution) is delayed.
<p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
SuSE distributions contain the bind nameserver in Version 4 as well.
bind-4.x in the currently used version has security-related bugs,
some of which are similar to the ones in the 8.x versions. We will
provide update packages as well as an announcement for the bind
(not bind8) package shortly, along with an own announcement.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Roman Drahtmüller.
- - --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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1
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: kdesu
Announcement-ID: SuSE-SA:2001:02
Date:
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
Vulnerability Type: local root compromise
Severity (1-10): 3
SuSE default package: yes
Other affected systems: All KDE 1 & KDE 2 systems
Content of this advisory:
1) security vulnerability resolved: kdesu
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
<p> kdesu is a KDE frontend for su(1). When invoked it prompts for the
root password and runs su(1). kdesu itself does not run setuid/setgid.
However when enabling the 'keep password' option it tries to send
the password across process boundaries to kdesud via a UNIX socket.
During this it does not verify the identity of the listener on the other
end. This allows attackers to obtain the root password.
This bug has been fixed in the update packages by checking the ownership
of the socket on the listener side.
Download the update package from locations desribed below and install
the package with the command `rpm -Uhv file.rpm'. The md5sum for each
file is in the line below. You can verify the integrity of the rpm
files using the command
`rpm --checksig --nogpg file.rpm',
independently from the md5 signatures below.
<p> i386 Intel Platform:
SuSE-6.1:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/kpa1/kdesu-0.98-187.i386.rpm
3d51f84f2dc87916bc937f3afe507c1a
SuSE-6.1:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/kpa1/kdesu.rpm
3d51f84f2dc87916bc937f3afe507c1a
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/kdesu-0.98-187.src.rpm
f8764afd475fa7a41c18603d15ce48ab
SuSE-6.2:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/kpa1/kdesu-0.98-187.i386.rpm
027617e19c957b1ed5f42f140b62521b
SuSE-6.2:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/kpa1/kdesu.rpm
027617e19c957b1ed5f42f140b62521b
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/kdesu-0.98-187.src.rpm
9cf3d4b0c00db4598968dd5c7e07eef7
SuSE-6.3:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/kpa1/kdesu-0.98-187.i386.rpm
d2b6c6f3330a20c2eb7d5500de2f9df6
SuSE-6.3:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/kpa1/kdesu.rpm
d2b6c6f3330a20c2eb7d5500de2f9df6
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/kdesu-0.98-187.src.rpm
a50cc8ba1a793f9151559454fdad0a14
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/kpa1/kdesu-0.98-187.i386.rpm
8f06dd49bdc00dca25eff33a3754ddee
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/kpa1/kdesu.rpm
8f06dd49bdc00dca25eff33a3754ddee
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/kdesu-0.98-187.src.rpm
0ca2d30cf51d1307f88581d4e240bbf0
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/kpa1/kdesu-0.98-187.i386.rpm
c7238ea5775939239b3857b550ca9f1b
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/kpa1/kdesu.rpm
c7238ea5775939239b3857b550ca9f1b
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/kdesu-0.98-187.src.rpm
bc74c75ba0b514f7df4f0250ccc7454a
<p><p> Sparc Platform:
<p><p> AXP Alpha Platform:
SuSE-6.1:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/kpa1/kdesu-0.98-187.alpha.rpm
8017cd7fed463cae4bef3fa471e7e1d8
SuSE-6.1:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/kpa1/kdesu.rpm
8017cd7fed463cae4bef3fa471e7e1d8
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/kdesu-0.98-187.src.rpm
78846e4ae3f50e9264e8840da1a628a8
SuSE-6.3:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/kpa1/kdesu-0.98-187.alpha.rpm
cf1629ba236c0c84e0f2b33101b5f1aa
SuSE-6.3:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/kpa1/kdesu.rpm
cf1629ba236c0c84e0f2b33101b5f1aa
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/kdesu-0.98-187.src.rpm
da851ebaee36cb91cb1e1fca0c8bfda2
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/kpa1/kdesu-0.98-187.alpha.rpm
d1904cc9db320ea2c576b73633ee6bd5
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/kpa1/kdesu.rpm
d1904cc9db320ea2c576b73633ee6bd5
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/kdesu-0.98-187.src.rpm
27261cf8ff0ea66a597520260b832f7d
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/kpa1/kdesu-0.98-187.alpha.rpm
be3b258eeeb3c56351b93ec8a32826db
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/kpa1/kdesu.rpm
be3b258eeeb3c56351b93ec8a32826db
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/kdesu-0.98-187.src.rpm
b7e3139377784c5cbbc4f14a5061d124
<p><p> PPC Power PC Platform:
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/kpa1/kdesu-0.98-187.ppc.rpm
705afa4defc64c48f89dd94b2d52c296
SuSE-6.4:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/kpa1/kdesu.rpm
705afa4defc64c48f89dd94b2d52c296
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/kdesu-0.98-187.src.rpm
32e626fa7e8206d6803957c77062185b
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/kpa1/kdesu-0.98-187.ppc.rpm
e9b4a8a26844af0bc8cb37c8d2d26530
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/kpa1/kdesu.rpm
e9b4a8a26844af0bc8cb37c8d2d26530
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/kdesu-0.98-187.src.rpm
aaa092ffafe149ef8ba3acf570966e09
<p><p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- Kmail remote code execution.
This issue will be adressed in following advisories.
- pgp4pine bufferoverflow.
Very unlikely to be exploited, but next advisories will
contain information on this as well as URL's for patches.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Sebastian Krahmer
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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______________________________________________________________________________
SuSE Security Announcement
Package: glibc (shlibs)
Announcement-ID: SuSE-SA:2001:01
Date: Friday, January 26th, 2001 15:40 MET
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
Vulnerability Type: local root compromise
Severity (1-10): 6
SuSE default package: yes
Other affected systems: most Linux/glibc based systems
Content of this advisory:
1) security vulnerability resolved: glibc
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
<p> ld-linux.so.2, the dynamical linker, adds shared libraries to the
memoryspace of a program to be started. Its flexibility allows for
some environment variables to influence the linking process such as
preloading shared libraries as well as defining the path in which
the linker will search for the shared libraries. Special care must
be exercised when runtime-linking setuid- or setgid-binaries:
The runtime-linker must not link against user-specified libraries
since the code therein would then run with the elevated privileges
of the suid binary.
The runtime-linker as used in the SuSE distributions ignores the
content of the critical environment variables if the specified path
begins with a slash ("/"), or if the library file name is not
cached (eg it is contained in a path from /etc/ld.so.conf).
However, Solar Designer has found out that even preloading glibc-
native shared libraries can be dangerous: The code in the user-linked
library is not aware of the fact that the binary runs with suid or
sgid privileges. Using debugging features of the glibc (and possibly
other features) it is possible for a local attacker to overwrite
arbitrary files with the elevated privileges of the suid/sgid binary
executed. This may lead to a local root compromise.
To eliminate these problems, we provide update packages that completely
disregard the LD_* variables upon runtime-linking of a binary that has
an effective uid different from the caller's userid.
<p> Download the update package from locations desribed below and install
the package with the command `rpm -Uhv file.rpm'. The md5sum for each
file is in the line below. You can verify the integrity of the rpm
files using the command
`rpm --checksig --nogpg file.rpm',
independently from the md5 signatures below.
SPECIAL INSTALL INSTRUCTIONS:
==============================
The glibc (the shlibs package) is an intrinsic part of the GNU/Linux
operating system since most binary executables are dependent on
the shared libraries from that package. For this reason, special care
must be taken while updating the shlibs package.
After downloading the binary rpm files, make sure that your system is
idle by bringing it down to Single User Mode (`init 1Ž). If this is not
applicable for operational reasons, then keep your machine as calm as
possible while you perform the update. In particular, make sure that
no shell scripts are running during the update.
Install the package using the command
rpm -Uhv package-rpm-file
Do _NOT_ interrupt the operation of the rpm command!
After the installation, execute the commands
ldconfig # alternatively, use SuSEconfig
/sbin/init u # will restart init
At this point, the update is done.
On low-memory machines a reboot is advisable to free the memory that
is used by the old memory-mapped libraries.
<p> Note 1:
The upcoming SuSE-7.1 distribution is based on glibc-2.2. This
distribution is not affected by the security problems in glibc as
discussed in security forums.
Note 2:
The source rpm for the shlibs package is called "libc*.rpm".
Multiple binary rpm packages are being generated from this source
rpm package. These include: localedb, nssv1, shlibs, timezone.
To get a fix for the runtime-linker related security issue (topic
of this announcement), it is only necessary to update the shlibs
binary rpm package.
<p><p> SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/a1/shlibs-2.1.3-190.i386.rpm
94ccbb80d2841f08f2b7322671d6e7f3
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/libc-2.1.3-190.src.rpm
3d15b6ffff534f0bf705882dbd8a2551
SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/shlibs-2.1.3-155.i386.rpm
bc03f1a6f32a66958128e9450e355698
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/libc-2.1.3-155.src.rpm
e8f2aa8d32122edfbe3c436a52abb847
SuSE-6.3
ftp://ftp.suse.com/pub/suse/i386/update/6.3/a1/shlibs-2.1.2-48.i386.rpm
8d572332c67b488e5d64a8d4d3274e90
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/libc-2.1.2-48.src.rpm
8e1f861112f4a921ea4c7b5631304ee6
SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/6.2/a1/shlibs-2.1.1-30.i386.rpm
b6b4cfe73e46c5b3bd5b626d68dfa584
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/libc-2.1.1-30.src.rpm
67fcd70b40f145b5f40b86f7254e35be
SuSE-6.1
SuSE-6.0
The rpm packages are being produced as this announcement is written.
The md5sums for these rpm packages will be provided on the ftp-server,
signed with the security(a)suse.de pgp key below.
<p> Sparc Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/a1/shlibs-2.1.3-155.sparc.rpm
6b000a6278366c6da4b719d2f62ad7a4
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/libc-2.1.3-155.src.rpm
e845606be9c9aca72213e4c5f1f32290
<p> AXP Alpha Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/axp/update/7.0/a1/shlibs-2.1.3-155.alpha.rpm
2df813e3c08b52e3f914c591efc742d4
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/7.0/zq1/libc-2.1.3-155.src.rpm
9cb7a6e5981112da6d702916d453b419
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/shlibs-2.1.3-155.alpha.rpm
0636c2cddf131e76c19e154619a65bd8
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/libc-2.1.3-155.src.rpm
39fd3b8e7e4054bc7a333a831e99e6fd
SuSE-6.3
ftp://ftp.suse.com/pub/suse/axp/update/6.3/a1/shlibs-2.1.2-48.alpha.rpm
f9713bc945bf7f98527d2fdfbe756dfb
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/libc-2.1.2-48.src.rpm
af2eb3df9d83f8f8ca13526046a3a539
SuSE-6.1
ftp://ftp.suse.com/pub/suse/axp/update/6.1/a1/shlibs-2001.1.17-0.alpha.rpm
4a0033c4ec32ef0e79fc1b7a83692738
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/libc-2000.9.5-0.src.rpm
11871baa8279f8c0c79f6c9d95ca531c
<p><p> PPC Power PC Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/a1/shlibs-2.1.3-173.ppc.rpm
8d9d27a8fba22de4df5cd4700a541ad9
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/libc-2.1.3-173.src.rpm
89946b9a2bb7c545a1761a84ebd979ab
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/shlibs-2.1.3-190.ppc.rpm
383bb49a2f6a3e83a9c2ed3eea30dc99
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/libc-2.1.3-190.src.rpm
91ed7087165b74383cddb556abc07402
<p><p><p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
This announcement is followed by a sequence of more announcements
to address the ongoing security problems as discussed in public
security forums. In particular, there are temporary file races in
multiple packages (we collect and address them in a single
announcement to keep the noise low), format string bugs, as well
as a man-in-the-middle attack in the kdesu program and a single-byte
buffer overflow. The next announcenemts will contain more information
on these topics.
Please stay tuned.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
<p><p>Regards,
Roman Drahtmüller,
SuSE Security.
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
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______________________________________________________________________________
SuSE Security Announcement
Package: netscape
Announcement-ID: SuSE-SA:2000:48
Date: Thursday, November 30th, 2000 19:00 MET
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
Vulnerability Type: clientside remote vulnerability
Severity (1-10): 4
SuSE default package: yes
Other affected systems: systems w/ netscape versions before 4.76
Content of this advisory:
1) security vulnerability resolved: netscape
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
Michal Zalewski <lcamtuf(a)DIONE.IDS.PL> has found a buffer overflow in
the html parser code of the Netscape Navigator in all versions before
and including 4.75. html code of the form
<form action=foo method=bar>
<input type=password value=long string here>
more form tags
</form>
can crash the browser. It may be possible for an attacker to supply
a webpage that executes arbitrary code as the user running netscape.
As of today, no exploit code is known to exist in the wild.
SuSE provides an update package for the vulnerable software. It is
recommended to upgrade to the latest version found on our ftp server
as described below. The update package introduces Netscape version
4.76.
NOTE:
Please note that Netscape-4.76 is not available for the glibc-2.0-based
SuSE Distributions SuSE-6.0 and 6.1 because Netscape doesn't provide
any binaries for the glibc version in these distributions (glibc-2.0).
For SuSE-6.0 and 6.1, we provide a libc5-based version of netscape-4.76
which runs smoothly on all i386-based SuSE distributions 6.x and 7.x,
provided the package shlibs5 is installed. The package can be found in
the update/5.3 directory on our ftp server (see below).
There are no packages available for platforms other than i386.
NOTE:
The packages on our ftp servers date back to October 31st. Since
there is no release notes or README file with equivalent content
in the netscape tarball, SuSE security was not aware of the fact
that this release of netscape fixes the known problems. This
information can be obtained from (along with information about
other bugfixes)
http://home.netscape.com/eng/mozilla/4.7/relnotes/windows-4.76.html .
Please choose the update package(s) for your distribution from the URLs
listed below and download the necessary rpm files. Then, install the
package using the command `rpm -Uhv file.rpmŽ. rpm packages have an
internal md5 checksum that protects against file corruption. You can
verify this checksum using the command (independently from the md5
signatures below)
`rpm --checksig --nogpg file.rpm',
The md5 sums under each package are to prove the package authenticity,
independently from the md5 checksums in the rpm package format.
<p> Intel i386 Platform
SuSE-7.0
SuSE-6.4
SuSE-6.3
SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/7.0/xap1/netscape-4.76.glibc21.i386…
7ccebaca7df0937a3c08fc30a27af858
SuSE-6.1
SuSE-6.0
ftp://ftp.suse.com/pub/suse/i386/update/5.3/xap1/netscape-4.76.libc5.i386.r…
3c4f06c5fea4755083524eb135627380
<p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- ssh/openssh
Several inconsistencies and configuration bugs have been introduced
in the SuSE rpm packages for the update of openssh (SuSE-SA:2000:47)
that cause the openssh software to not work as reliably as usual.
The packages are about to be reworked, the openssh announcement will
be reissued.
- pidentd
The in.identd daemon on SuSE distributions can be crashed remotely.
We're working on a fix.
- bash1
bash, version 1, handles temporary files in an unsafe manner that
allows a local attacker to overwrite arbitrary files as the user
running a bash1 with input redirection of the "<< EOF" style.
The bash1 package is not used per default in SuSE-distributions.
We're working on a fix (update packages).
- tcsh
The paragraph above about bash version 1 applies to the tcsh as
well, in all versions. The tcsh is not used by SuSE scripts.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Roman Drahtmüller.
- - --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
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______________________________________________________________________________
SuSE Security Announcement
Package: openssh/ssh
Announcement-ID: SuSE-SA:2000:47
Date: Friday, November 24th, 2000 16:30 MET
Affected SuSE versions: 6.4, 7.0
Vulnerability Type: clientside remote vulnerability
Severity (1-10): 6
SuSE default package: yes
Other affected systems: systems w/ openssh versions before 2.3.0
Content of this advisory:
1) security vulnerability resolved: openssh
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
openssh is an implementation of the secure shell protocol, available under
the BSD license, primarily maintained by the OpenBSD Project.
Many vulnerabilities have been found in the openssh package, along with
a compilation problem in the openssh and ssh packages in the SuSE-7.0
distribution: An openssh client (the ssh program) can accept X11- or
ssh-agent forwarding requests even though these forwarding capabilities
have not been requested by the client side after successful authentication.
Using these weaknesses, an attacker could gain access to the
authentication agent which may hold multiple user-owned authentification
identities, or to the X-server on the client side as if requested by the
user. These problems have been found/reported by Markus Friedl
<markus.friedl(a)informatik.uni-erlangen.de> and Jacob Langseth
<jwl(a)pobox.com>.
A problem in the configure script in both the openssh and ssh package
on the SuSE-7.0 distribution caused the sshd programs to not be linked
against the tcp-wrapper library. By consequence, access rules for the sshd
server-side service as configured in /etc/hosts.allow and /etc/hosts.deny
were ignored. This has been reported to us by Lutz Pressler <lp(a)SerNet.DE>.
We thank these individuals for their contribution.
Sebastian Krahmer <krahmer(a)suse.de> found a small tmp file handling
problem in the perl script `make-ssh-known-hostsŽ. A (local) attacker
could trick the perl program to follow symbolic links and thereby
overwriting files with the privileges of the user calling
make-ssh-known-hosts.
The solution for the first three problems (agent+X11-forwarding, missing
libwrap support) is an upgrade to a newer package. The tmp file problem
can be easily solved by hand. Please see the special install instructions
below.
Note: Upon public request, we also provide update packages for the
SuSE-6.3 Intel distribution, even though the openssh packages
was not included in this distribution.
<p> special install instructions:
=====================================
To find out which package (ssh or openssh) you use, please use the command
`rpm -qf /usr/bin/sshŽ.
__
case openssh:
Please follow the instructions below to download and install
the update package. Afterwards, restart the sshd daemon:
`rcsshd restartŽ.
__
case ssh:
before SuSE-7.0 (excluding 7.0):
In the file /usr/bin/make-ssh-known-hosts, please change the line
(around line 102)
$private_ssh_known_hosts = "/tmp/ssh_known_hosts$$";
to read
$private_ssh_known_hosts = "~/ssh_known_hosts$$";
and you are done.
SuSE-7.0: Please follow the instructions below to download
and install the update package. Afterwards, restart the sshd daemon:
`rcsshd restartŽ
<p> Please choose the update package(s) for your distribution from the URLs
listed below and download the necessary rpm files. Then, install the
package using the command `rpm -Uhv file.rpmŽ. rpm packages have an
internal md5 checksum that protects against file corruption. You can
verify this checksum using the command (independently from the md5
signatures below)
`rpm --checksig --nogpg file.rpm',
The md5 sums under each package are to prove the package authenticity,
independently from the md5 checksums in the rpm package format.
<p> i386 Intel Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/i386/update/7.0/sec1/openssh-2.3.0p1-0.i386.rpm
3c7b9044ffb64f9f74c904eb2b278eb2
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm
aebcda19518208497671e752bbdfaeb8
SuSE-6.4
ftp://ftp.suse.de/pub/suse/i386/update/6.4/sec1/openssh-2.3.0p1-0.i386.rpm
04c17b0eba99c798ae401fb9aafbc7e4
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm
2003ab41cfa32ef39b11b4977ef4cd1f
SuSE-6.3
ftp://ftp.suse.de/pub/suse/i386/update/6.3/sec1/openssh-2.3.0p1-0.i386.rpm
04c17b0eba99c798ae401fb9aafbc7e4
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.3/zq1/openssh-2.3.0p1-0.src.rpm
2003ab41cfa32ef39b11b4977ef4cd1f
<p> Sparc Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/sec1/openssh-2.3.0p1-0.sparc.rpm
898aaaacee88777429496f1a5658076f
source rpm:
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm
97868b04de04a0baafcee69ebbbe6079
<p> AXP Alpha Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/axp/update/7.0/sec1/openssh-2.3.0p1-0.alpha.rpm
dd12c60b2744455780c976b115b26f27
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm
6df5af1a88fda4d8fc1a493e4d10bc01
SuSE-6.4
ftp://ftp.suse.de/pub/suse/axp/update/6.4/sec1/openssh-2.3.0p1-0.alpha.rpm
99de4bb6f183be1b69a610744f4566bc
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm
aa56e311205ba58478c815760452367e
<p> PPC Power PC Platform:
SuSE-7.0
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/sec1/openssh-2.3.0p1-0.ppc.rpm
72f7c339991e54a476585012423dda62
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/zq1/openssh-2.3.0p1-0.src.rpm
749ccc55396944ad43c1977e55903958
SuSE-6.4
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/sec1/openssh-2.3.0p1-0.ppc.rpm
59727fa055e5d835bc4e455302b1ef49
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/zq1/openssh-2.3.0p1-0.src.rpm
7e42dbad4e50a2ad9156e94cf2a93955
______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
Clarification:
In my message (Subject: "SuSE: miscellaneous"), dated Wed, 15 Nov 2000,
concerning the paragraph about runtime linking problems in gs
(GhostScript) , I have stated that the problem will be fixed in future
versions of the SuSE distribution. This does not touch the fact that we
will of course provide fixes for the older distributions.
<p> - pine
The packages (version 4.30) are on our ftp server and can be downloaded.
The SuSE security announcement is pending.
<p> - netscape
Michal Zalewski <lcamtuf(a)DIONE.IDS.PL> has reported a buffer overflow
in Netscape's html parser code. A specially crafted html document may
cause the browser to execute arbitrary code as the user calling the
netscape program. The packages are available for download on ftp.suse.com.
A security announcement is on the way to address the issue.
- gs (ghostscript)
Two vulnerabilities have been found in the ghostscript package as shipped
with SuSE distributions: Insecure temporary file handling and a linker
problem that could make gs runtime-link against ./libc.so.6.
We're currently working on update packages. In the meanwhile, it is
advised to not run gs or applications that call gs from within a world-
writeable directory.
<p> - jed
The text editor jed saves files in /tmp upon emergency termination in an
insecure way. This problem was fixed with the release of SuSE-6.3 after
a SuSE-internal code audit by Thomas Biege <thomas(a)suse.de>. The
information about the existence of this bug was not communicated to the
public because the editor was not very widely used at that time.
We will provide update packages for the SuSE releases 6.0, 6.1 and 6.2
shortly.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Roman Drahtmüller.
- - --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: tcpdump
Announcement-ID: SuSE-SA:2000:46
Date: Friday, November 17th, 2000 16:00 MEST
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4, 7.0
Vulnerability Type: remote denial of service
Severity (1-10): 6
SuSE default package: yes
Other affected systems: systems using the same versions of tcpdump
and the necessary libraries
Content of this advisory:
1) security vulnerability resolved: tcpdump
problem description, discussion, solution and upgrade information
2) clarification, pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
tcpdump is a widespread network/packet analysis tool, also known as a
packet sniffer, used in unix/unix-like environment.
Several overflowable buffers have been found in SuSE's version of tcpdump
that could allow a remote attacker to crash the local tcpdump process.
Since tcpdump may be used in combination with intrusion detection
systems, a crashed tcpdump process may disable the network monitoring
system as a whole.
The FreeBSD team who found these vulnerabilities also reported that
tcpdump's portion of code that can decode AFS ACL (AFS=Andrew File
System, a network filesystem, ACL=Access Control List) packets is
vulnerable to a (remotely exploitable) buffer overrun attack that
could allow a remote attacker to execute arbitrary commands as root
since the tcpdump program usually requires root privileges to gain
access to the raw network socket.
The versions of tcpdump as shipped with SuSE distributions do not
contain the AFS packet decoding capability and are therefore not
vulnerable to this second form of attack.
A temporary workaround for the tcpdump problems other than not using
tcpdump in the first place does not exist. However, we provide update
packages for the affected SuSE distributions. We recommend an upgrade
using the packages that can be found using the URLs below.
Note: Please note that there is only one source rpm package but two
binary rpm packages. tcpdump*.rpm is the rpm for the tcpdump program,
and libpcapn*.rpm is the packet capture library that is required by
tcpdump at compile time. In order to remove the security vulnerability
in tcpdump, it is necessary to update the tcpdump rpm package only.
The libpcapn package with the static library is provided for
consistency and compatibility because it will be generated if the
binary packages are rebuilt from the source rpm.
To check if your system has the vulnerable package installed, use the
command `rpm -q <package name>Ž. If applicable, please choose the update
package(s) for your distribution from the URLs listed below and download
the necessary rpm files. Then, install the package using the command
`rpm -Uhv file.rpmŽ. rpm packages have an internal md5 checksum that
protects against file corruption. You can verify this checksum using
the command (independently from the md5 signatures below)
`rpm --checksig --nogpg file.rpm',
The md5 sums under each package are to prove the package authenticity,
independently from the md5 checksums in the rpm package format.
i386 Intel Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/d1/libpcapn-0.4a6-279.i386.rpm
f4e4a9231b695e1cf5eef0ad09871c34
ftp://ftp.suse.com/pub/suse/i386/update/7.0/n1/tcpdump-3.4a6-280.i386.rpm
ba711cf2fab14218752603fa5a941721
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/tcpdump-3.4a6-280.src.rpm
d4c5902c50d6a321e2c4ed665fcd1962
SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/d1/libpcapn-0.4a6-279.i386.rpm
a1030d64ca4ca86a08b6bee5dc9cff78
ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/tcpdump-3.4a6-280.i386.rpm
12335bf0055c6a9b915044a95a544aaa
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/tcpdump-3.4a6-280.src.rpm
dca26c3e5ef81f449cd43ab4d1f91b63
SuSE-6.3
ftp://ftp.suse.com/pub/suse/i386/update/6.3/d1/libpcapn-0.4a6-279.i386.rpm
13c90044ed57792090163a33ffb69ecf
ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/tcpdump-3.4a6-280.i386.rpm
646de6c14a2d4988d0c684a42b4eef58
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/tcpdump-3.4a6-280.src.rpm
46980acd95607d4a9c61ca0f75c33fc2
SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/6.2/d1/libpcapn-0.4a6-279.i386.rpm
d058e563ad10daf078f5909a6b8ff288
ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/tcpdump-3.4a6-280.i386.rpm
f5209f1f1433b0a55676f29451a2ef1b
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/tcpdump-3.4a6-280.src.rpm
cd34cd3feedbe0568d76dd9a406cec79
SuSE-6.1
ftp://ftp.suse.com/pub/suse/i386/update/6.1/d1/libpcapn-0.4a6-279.i386.rpm
ef454e2d23e410be82aa9f0634bcc9dc
ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/tcpdump-3.4a6-280.i386.rpm
9f6ebff316039421ee00121a0e8720fa
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/tcpdump-3.4a6-280.src.rpm
d1148813da9610f940ecdbd462ab2541
SuSE-6.0
Please use the package for the SuSE-6.1 distribution.
<p> Sparc Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/d1/libpcapn-0.4a6-279.sparc.rpm
412a7db34985555705d8d43f2853ae4e
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/n1/tcpdump-3.4a6-280.sparc.rpm
a177326150a65d78212cebba90b88201
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/tcpdump-3.4a6-280.src.rpm
49f1f0420dd84070dcd9a67452770e75
<p> AXP Alpha Platform:
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/d1/libpcapn-0.4a6-279.alpha.rpm
096522f46ab70d92dda17b4ca33b4181
ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/tcpdump-3.4a6-280.alpha.rpm
84ca9a93a2201f7046446ed07107cbbc
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/tcpdump-3.4a6-280.src.rpm
07ed654ad1693dca5fd433572b3689c9
SuSE-6.3
ftp://ftp.suse.com/pub/suse/axp/update/6.3/d1/libpcapn-0.4a6-280.alpha.rpm
747c22bb722da5df7fe3cfc252bdc545
ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/tcpdump-3.4a6-281.alpha.rpm
dbe10ebc95a2371d01df729af265bdf6
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/tcpdump-3.4a6-281.src.rpm
8f6e48e693fc465c1f60b6cee944c27c
<p> PPC Power PC Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/d1/libpcapn-0.4a6-279.ppc.rpm
140b95ffb3be2c2915327d4798b16dd0
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/n1/tcpdump-3.4a6-280.ppc.rpm
7f71b4ac17e3ad2c071e712c137a7c28
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/tcpdump-3.4a6-280.src.rpm
d9db0e99e91d8981efebafd6a539566f
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/d1/libpcapn-0.4a6-279.ppc.rpm
ed8697842867cbb5457c03015c117131
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/tcpdump-3.4a6-280.ppc.rpm
782dc3faba33cf1b2d9e6ef95caf4107
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/tcpdump-3.4a6-280.src.rpm
318bf758753d9728f101de2101ad3227
<p><p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
Clarification:
In my message (Subject: "SuSE: miscellaneous"), dated Wed, 15 Nov 2000,
concerning the paragraph about runtime linking problems in gs
(GhostScript) , I have stated that the problem will be fixed in future
versions of the SuSE distribution. This does not touch the fact that we
will of course provide fixes for the older distributions.
<p> - pine
We're still working on the packages for the version 4.30 (stability
problems).
- ppp
The ppp "deny_incoming" problem as announced by FreeBSD Security
Advisory FreeBSD-SA-00:70.ppp-nat is FreeBSD specific and does not
affect the SuSE distribution.
- vixie cron
Michal Zalewski <lcamtuf(a)TPI.PL> reported security problems in
Paul Vixie's cron implementation that is commonly used in Linux
distributions. Due to correct permissions on the directory
/var/spool/cron, the SuSE cron package is not affected by the problem.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Roman Drahtmüller.
- - --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: bind8
Announcement-ID: SuSE-SA:2000:45
Date: Thursday, November 16th, 2000 16:00 MEST
Affected SuSE versions: 6.0, 6.1, 6.2, 6.3, 6.4
Vulnerability Type: remote denial of service
Severity (1-10): 7
SuSE default package: no
Other affected systems: all systems using bind, version 8.2.2 before
patchlevel 7
Content of this advisory:
1) security vulnerability resolved: bind8
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
<p> BIND, the Berkeley Internet Name Daemon, versions before 8.2.2p7, has
been found vulnerable to two denial of service attacks: named may crash
after a compressed zone transfer request (ZXFR) and if an SRV record
(defined in RFC2782) is sent to the server. Administrators testing
the ZXFR bug should be aware that it can take several seconds after
the triggering the bug until the nameserver daemon crashes.
SuSE versions 6.0 through 6.4 are affected by these two problems.
The bind8 package in SuSE-7.0 is not affected because a different
version of bind8 (8.2.3) was used in this distribution. By the release
time of the SuSE-7.0 distribution our engineers have determined that
the problems we had with stalling zone transfers under some obscure
conditions were not present with the 8.2.3 release of the package.
Administrators are strongly recommended to upgrade their bind8 package
using the provided packages from the sources below. There is a
temporary fix for the ZXFR problem (disable zone transfers) but none
for the SRV record problem.
For the latest information about security vulnerabilities in the bind
name server consider the Internet Software Consortium bind security
webpage at http://www.isc.org/products/BIND/bind-security.html .
To check if your system has the vulnerable package installed, use the
command `rpm -q <package name>Ž. If applicable, please choose the update
package(s) for your distribution from the URLs listed below and download
the necessary rpm files. Then, install the package using the command
`rpm -Uhv file.rpmŽ. rpm packages have an internal md5 checksum that
protects against file corruption. You can verify this checksum using
the command (independently from the md5 signatures below)
`rpm --checksig --nogpg file.rpm',
The md5 sums under each package are to prove the package authenticity,
independently from the md5 checksums in the rpm package format.
i386 Intel Platform:
SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/n1/bind8-8.2.2-139.i386.rpm
c6f2242efe722aaa4320010e00ddc080
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/bind8-8.2.2-139.src.rpm
ecd26bdf60d7950585649bc638a1d812
SuSE-6.3
ftp://ftp.suse.com/pub/suse/i386/update/6.3/n1/bind8-8.2.2-139.i386.rpm
d3f51528ad2120cd3dc6517c2bc26c0a
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.3/zq1/bind8-8.2.2-139.src.rpm
6f1b8c1227d4876389a28d416a952713
SuSE-6.2
ftp://ftp.suse.com/pub/suse/i386/update/6.2/n1/bind8-8.2.2-139.i386.rpm
4d8a9f4c6e041326929bbdae97c10105
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.2/zq1/bind8-8.2.2-139.src.rpm
83807820676d98687797ffff6f5b425c
SuSE-6.1
ftp://ftp.suse.com/pub/suse/i386/update/6.1/n1/bind8-8.2.2-139.i386.rpm
1694cf40b5fa41361749297c9cddbca4
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.1/zq1/bind8-8.2.2-139.src.rpm
8c5f727554e12a5aedb96de3db663518
SuSE-6.0
Please use the package from the 6.1 distribution.
AXP Alpha Platform:
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/n1/bind8-8.2.2-139.alpha.rpm
51f61faaad78160fb3dcc68a8588c209
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/bind8-8.2.2-139.src.rpm
f42c51962852f8ff14e2d6423de62aec
SuSE-6.3
ftp://ftp.suse.com/pub/suse/axp/update/6.3/n1/bind8-8.2.2-139.alpha.rpm
4d16cecb0da4f8ed6bff9c92655b9036
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.3/zq1/bind8-8.2.2-139.src.rpm
d8c4d1d9f0a14249151aa9d9e25f1db8
SuSE-6.1
ftp://ftp.suse.com/pub/suse/axp/update/6.1/n1/bind8-8.2.2-139.alpha.rpm
6a4f5b18072cca93f9064fdc802e50fb
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.1/zq1/bind8-8.2.2-139.src.rpm
a3eec237cc642739b5b6c6eea6d197c0
<p> PPC Power PC Platform:
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/n1/bind8-8.2.2-139.ppc.rpm
65e82b875e7f8ff7409062d502d56115
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/bind8-8.2.2-139.src.rpm
fd2a6e2a29a80b997758d4245913ff51
<p><p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
A new security announcement follows this advisory.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Roman Drahtmüller.
- - --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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-----BEGIN PGP SIGNED MESSAGE-----
SuSE: miscellaneous 15:30 MET, Wednesday, November 15 2000
This notice addresses the latest security advisories from various Linux
vendors as well as private contributors on public security forums. The
issues have been collected to keep the noise on the public security
forums at a reduced level.
The information herein should be considered both background as well as
upgrade information (please read carefully).
<p>==
Topics:
1) SuSE security staff
2) packages:
gpg (update information)
bind8 (status: update avail, announcement pending)
pine (status: testing new version 4.30)
dump (status: not vulnerable)
phf (status: not vulnerable)
gs (status: pending)
global (status: building)
crontab (status: not vulnerable)
vlock (status: not vulnerable)
tcpdump (status: update avail, testing)
tcsh (status: update+announcement pending)
modules (status: more updates for older distributions)
==
1) SuSE security staff
SuSE welcomes security professional Sebastian Krahmer <krahmer(a)suse.de>
aboard the SuSE security team. His name has already been on top of the
last SuSE security announcement about the security problems in the modules
package. Enlarging the capacity of the security team, Sebastian will be
busy fixing security problems, auditing code and maintaining security-
related software. More security announcements from him will be seen in the
future.
<p>2) packages
_________________________________________________________________________
* gpg
GnuPG may erroneously recognize a file/mail to be correctly signed, if
there are multiple signatures and the file/mail has been modified.
This bug affects all GnuPG versions prior to and including 1.0.3. It has
been fixed in version 1.0.4. Updated packages are available on our
German ftp server (as well as its mirrors) for the SuSE distributions
6.3, 6.4 and 7.0. Please note that the gpg packages for the SuSE-7.0
distribution have an addon, called gpgaddon. It contains
implementations of cipher algorythms that require licenses in many
countries due to software patents. Those gpgaddon packages are not
listed below.
There will not be a security announcement for this package - the
privacy risk for users of the old package is considerably small.
You can update your installed packages using the command
rpm -Uhv <URL-to-file>
where <URL-to-file> is one of the following FTP URLs to chose from.
Please use the SuSE Linux mirrors as listed at
http://www.suse.de/de/support/download/ftp/inland.html .
The md5sums for the files on the ftp server are:
i386 Intel Platform
SuSE-7.0
ftp://ftp.suse.de/pub/suse/i386/update/7.0/sec1/gpg-1.0.4-7.i386.rpm
d0b78231c127a6423c7ca46ec9618c00
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/7.0/zq1/gpg-1.0.4-7.src.rpm
a613abc7691b49e0c67e8c7dc924e3b0
SuSE-6.4
ftp://ftp.suse.de/pub/suse/i386/update/6.4/sec1/gpg-1.0.4-7.i386.rpm
c5b9fbe25d8cb5db4f52638c0959294d
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.4/zq1/gpg-1.0.4-7.src.rpm
f9d351e1b86fbcfbcf0d23fae5739b20
SuSE-6.3
ftp://ftp.suse.de/pub/suse/i386/update/6.3/sec1/gpg-1.0.4-7.i386.rpm
c5b9fbe25d8cb5db4f52638c0959294d
source rpm:
ftp://ftp.suse.de/pub/suse/i386/update/6.3/zq1/gpg-1.0.4-7.src.rpm
f9d351e1b86fbcfbcf0d23fae5739b20
<p> Sparc Platform
SuSE-7.0
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/sec1/gpg-1.0.4-5.sparc.rpm
335aa6315468d4dae5753a6d14809bdd
source rpm:
ftp://ftp.suse.de/pub/suse/sparc/update/7.0/zq1/gpg-1.0.4-5.src.rpm
796b6f901aee33aad5fd01dc874abe3c
<p> PPC Power PC platform
SuSE-7.0
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/sec1/gpg-1.0.4-7.ppc.rpm
302a7899783c9604a4ce962fcc627675
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/7.0/zq1/gpg-1.0.4-7.src.rpm
415be9ff92bcfd4a8f764207d412906d
SuSE-6.4
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/sec1/gpg-1.0.4-5.ppc.rpm
3566276b56ce13d6b977af91b5797ffc
source rpm:
ftp://ftp.suse.de/pub/suse/ppc/update/6.4/zq1/gpg-1.0.4-5.src.rpm
49b75a880656a11e99fcbad16673247e
<p> AXP Alpha Platform
SuSE-7.0
ftp://ftp.suse.de/pub/suse/axp/update/7.0/sec1/gpg-1.0.4-12.alpha.rpm
8a504ad8957d455ead3ff22d6ba31626
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/7.0/zq1/gpg-1.0.4-12.src.rpm
986675ccf38f88770c079281a4175618
SuSE-6.4
ftp://ftp.suse.de/pub/suse/axp/update/6.4/sec1/gpg-1.0.4-5.alpha.rpm
65f6662aea3ff8832ac932ca0a57c10b
source rpm:
ftp://ftp.suse.de/pub/suse/axp/update/6.4/zq1/gpg-1.0.4-5.src.rpm
1d3ff30fac336c8e314da9903d1ee1b9
_________________________________________________________________________
* bind8
BIND, the Berkeley Internet Name Daemon, versions before 8.2.2p7, has
been found vulnerable to two denial of service attacks: named may crash
after a compressed zone transfer request and if an SRV record (defined
in RFC2782) is sent to the server. SuSE versions 6.0 through 6.4 are
affected by this problem. The bind8 package in SuSE-7.0 is not
susceptible to the problems because a different version of bind8 has
been used in this distribution.
A temporary workaround against the first error is to disable zone
transfers if those are not needed (it is recommended for security
reasons, and the default configuration in our package has zone transfers
disabled.). Since the second bug can't be circumvented so easily, it is
recommended to upgrade the bind8 package as soon as possible.
Recognizing the urgency of this issue, the updated packages are on their
way to the ftp server right now. An announcement covering the issue will
follow this notice.
_________________________________________________________________________
* pine
The popular text-based mail user agent is vulnerable to a buffer
overflow in the portion of code that periodically checks for the arrival
of new mail. In addition, there is an error in the header parsing code
which could lead to a crash of the mail program.
The authors of pine (University of Washington, Seattle, see
http://www.washington.edu/pine/credits.html) have published a new version
of the pine package that should fix the known problems. During testing,
several instabilities of the program have been observed so that we
have delayed the release of the updated version. Additional patches are
being tested right now so that the release of the new version 4.30 can
be expected within days.
_________________________________________________________________________
* dump
The Linux implementation of the ext2fs backup utility "dump" can be
tricked into running arbitrary commands as root in case it is installed
setuid root. dump is not installed suid root in SuSE Linux releases 6.0
through (the most recent) 7.0 because there is no convincing reason to
do so. Therefore, SuSE Linux is not vulnerable to this problem with
the dump program.
_________________________________________________________________________
* phf cgi program
proton <proton(a)ENERGYMECH.NET> has discovered a buffer overflow that can
lead the phf cgi program to execute arbitrary code with the privileges
of the user that the webserver is running under. SuSE distributions
contain a cgi program that is called phf, it is included in the thttpd
package. Installed under /usr/local/httpd/htdocs/cgi-bin/phf, this
program is a booby trap that logs attackers intending to exploit
formerly known bugs of the phf program. By consequence, SuSE
distributions are not vulnerable to the buffer overflow in the phf
program.
_________________________________________________________________________
* gs
The Ghostscript program in SuSE distributions runtime-links against
shared libraries in the current working directory if a shared library
with the adequate name is present. The problem is created by exporting
the environment variable LD_RUN_PATH at linking time during the package
compile process. Later, at runtime linking, the runtime linker
ld-linux.so.2 will try to open ./libc.so.6. If this fails, the linker
will continue searching the usual paths to find the library.
Basically, this means that users should call gs as well as all programs
using gs (such as gv or ghostview) in a directory that is only
writeable by the user calling gs. It is expected that more Linux
distributions (other than SuSE Linux) and possibly commercial unix
vendors as well are affected by this problem. In future versions of the
SuSE Linux distribution, this problem will be fixed.
_________________________________________________________________________
* global
htags, one program within the global package, is a hypertext generator
from C, Yacc and Java source code. The "-f" option generates a cgi
script as an input form backend that is vulnerable to a simple remote
attack if the script is executable by a webserver. Remote attackers can
run arbitrary commands under the user privileges of the webserver.
The global package is not installed per default, nor is the bug present
in the "installed-only" state of the package. However, if you use the
program and the "-f" option of htags, it is recommended to upgrade the
package as soon as possible. We are working on the update packages.
_________________________________________________________________________
* crontab
A tmp file vulnerability has been found in various implementations of
the crontab(1) command. SuSE Linux is not affected by this problem.
_________________________________________________________________________
* vlock
vlock is a terminal locking program for the Linux virtual system
console. It has been reported by Bartlomiej Grzybicki
<bgrzybicki(a)morliny.pl> that it is possible to crash a running vlock and
thus giving access to a console without a password. However, the
conditions under which the failure happens are not clear.
SuSE distributions are not concerned because the vlock program is not
included in the distribution.
_________________________________________________________________________
* tcpdump
Several buffer overflows have been found in the tcpdump program, a
network analysis program, according to FreeBSD Security Advisory
FreeBSD-SA-00:61.tcpdump. The vulnerability can be used to remotely crash
a running tcpdump program. Since the version of tcpdump included in SuSE
distributions is not capable of decoding AFS ACL packets, this particular
part of the bugs does not concern SuSE Linux. Though, some intrusion
detection systems rely on tcpdump's output so that a proper operation of
the tcpdump program is crutial.
There are updates packages available for download on our ftp server
which fix the vulnerability. The security announcement is pending while
we're still testing the packages.
_________________________________________________________________________
* tcsh
proton <proton(a)ENERGYMECH.NET> has found a temporary file vulnerability
in the portion of code in the tcsh that handles redirects of the form
cat << END_OF_TEXT
foo
bar
END_OF_TEXT
With this vulnerability in place, it is possible for an attacker to
overwrite arbitrary files with the privileges of the user of tcsh.
There is no fix for this problem other than an upgrade to a fixed
version which will be available on our ftp server shortly. An advisory
covering this matter will follow.
_________________________________________________________________________
* modules/modutils
Sebastian Krahmer <krahmer(a)suse.de> has issued a SuSE security
announcement about the shell meta character expansion vulnerability in
the modprobe program that is responsible for the automatic loading of
kernel modules upon request. In addition to the update packages for
the vulnerable versions of the SuSE distribution, we will provide
updates for the older distributions (6.0-6.3) shortly, even though
these distributions have not been found vulnerable to the modprobe
problem. The rpm packages can be found at the usual location shortly.
Regards,
Roman Drahtmüller,
SuSE Security.
- --
- -
| Roman Drahtmüller <draht(a)suse.de> // "Caution: Cape does |
SuSE GmbH - Security Phone: // not enable user to fly."
| Nürnberg, Germany +49-911-740530 // (Batman Costume warning label) |
- -
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-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: modules
Announcement-ID: SuSE-SA:2000:44
Date: Monday, November 13th, 2000 10:00 MEST
Affected SuSE versions: 6.4, 7.0
Vulnerability Type: local root compromise
Severity (1-10): 8
SuSE default package: yes
Other affected systems: many newer Linux distributions
Content of this advisory:
1) security vulnerability resolved: modprobe shell metacharacter
expansion
problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds
3) standard appendix (further information)
______________________________________________________________________________
1) problem description, brief discussion, solution, upgrade information
The modules package is responsible for on-demand loading of kernel
modules/drivers. The /sbin/modprobe command, when executed as a new
task by the kernel-internal function request_module(), runs with the
priviledges of the init process, usually root.
Newer versions of the modprobe program contain a bug
which allows local users to gain root priviledges. modprobe expands
given arguments via /bin/echo and can easily be tricked into executing
commands. In order for this bug to be exploitable, a setuid root program
must be installed that can trigger the loading of modules (such as ping6).
The fix for this bug consists of a change to modprobe which disables
the expansion of arguments to modprobe via /bin/echo.
A temporary workaround for this bug is to disable the automatic loading
of modules in the running kernel by running the command (as root)
/sbin/sysctl -w kernel.modprobe=/
or
echo "/" > /proc/sys/kernel/modprobe
Please note that this temporary workaround will have to be repeated
after the next reboot to become effective again.
Download the update package from locations desribed below and install
the package with the command `rpm -Uhv file.rpm'. The md5sum for each
file is in the line below. You can verify the integrity of the rpm
files using the command
`rpm --checksig --nogpg file.rpm',
independently from the md5 signatures below.
<p> i386 Intel Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/i386/update/7.0/a1/modules-2.3.11-73.i386.rpm
9643216a1e0c147635ef62d894a9d7ad
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/7.0/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
<p> SuSE-6.4
ftp://ftp.suse.com/pub/suse/i386/update/6.4/a1/modules-2.3.9-63.i386.rpm
d3a95b93e549aae9a462e84d179efe45
source rpm:
ftp://ftp.suse.com/pub/suse/i386/update/6.4/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
<p> Sparc Platform:
SuSE-7.0
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/a1/modules-2.3.11-73.sparc.rpm
c0ab9aab7a61cefdb2cade98c663d4e3
source rpm:
ftp://ftp.suse.com/pub/suse/sparc/update/7.0/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
<p> AXP Alpha Platform:
SuSE-6.4
ftp://ftp.suse.com/pub/suse/axp/update/6.4/a1/modules-2.3.9-63.alpha.rpm
a88b84d7f3d79f2a47ff9e78681a0390
source rpm:
ftp://ftp.suse.com/pub/suse/axp/update/6.4/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
<p> PPC Power PC Platform:
SuSE-7.0:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/a1/modules-2.3.11-73.ppc.rpm
ef09b5c6438a0de8e18653e0a60d9c4c
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/7.0/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
SuSE-6.4
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/a1/modules-2.3.9-63.ppc.rpm
27ba13500292c44969dd865f0c543c19
source rpm:
ftp://ftp.suse.com/pub/suse/ppc/update/6.4/zq1/modules.spm
Due to a packaging error, the modules package source rpm is not
available on our ftp servers yet. It will appear at the location above
in very few hours.
<p>______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
A seperate message is being prepared to address the currently ongoing
security vulnerabilites.
______________________________________________________________________________
3) standard appendix:
SuSE runs two security mailing lists to which any interested party may
subscribe:
suse-security(a)suse.com
- general/linux/SuSE security discussion.
All SuSE security announcements are sent to this list.
To subscribe, send an email to
<suse-security-subscribe(a)suse.com>.
suse-security-announce(a)suse.com
- SuSE's announce-only mailing list.
Only SuSE's security annoucements are sent to this list.
To subscribe, send an email to
<suse-security-announce-subscribe(a)suse.com>.
For general information or the frequently asked questions (faq)
send mail to:
<suse-security-info(a)suse.com> or
<suse-security-faq(a)suse.com> respectively.
===============================================
SuSE's security contact is <security(a)suse.com>.
===============================================
Regards,
Sebastian Krahmer
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way.
SuSE GmbH makes no warranties of any kind whatsoever with respect
to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048/3D25D3D9 1999/03/06 SuSE Security Team <security(a)suse.de>
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