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______________________________________________________________________________
SUSE Security Announcement
Package: krb5
Announcement ID: SUSE-SA:2007:038
Date: Tue, 03 Jul 2007 17:00:00 +0000
Affected Products: SUSE LINUX 10.0
SUSE LINUX 10.1
openSUSE 10.2
SUSE Linux Enterprise Desktop 10 SP1
SLE SDK 10 SP1
SUSE Linux Enterprise Server 10 SP1
Vulnerability Type: remote code execution
Severity (1-10): 7
SUSE Default Package: no
Cross-References: CVE-2007-2442, CVE-2007-2443, CVE-2007-2798
Content of This Advisory:
1) Security Vulnerability Resolved:
krb5 security problems
Problem Description
2) Solution or Work-Around
3) Special Instructions and Notes
4) Package Location and Checksums
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
6) Authenticity Verification and Additional Information
______________________________________________________________________________
1) Problem Description and Brief Discussion
The KRB5 libraries and utilities contained two security problems for which updates
were released.
- CVE-2007-2798: A stack-based buffer overflow in kadmind was fixed
which can be exploited by authenticated remote users to gain
root. This requires kadmind to run to be effective.
- CVE-2007-2442, CVE-2007-2443: Additionally two bugs in the RPC library
of kadmind were fixed that can lead to remote system compromise. Note
that third-party applications using this RPC library are vulnerable
too.
2) Solution or Work-Around
There is no known workaround, please install the update packages.
3) Special Instructions and Notes
None.
4) Package Location and Checksums
The preferred method for installing security updates is to use the YaST
Online Update (YOU) tool. YOU detects which updates are required and
automatically performs the necessary steps to verify and install them.
Alternatively, download the update packages for your distribution manually
and verify their integrity by the methods listed in Section 6 of this
announcement. Then install the packages using the command
rpm -Fhv
to apply the update, replacing with the filename of the
downloaded RPM package.
x86 Platform:
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/krb5-1.5.1-23.6.i586.rpm
dc2fa8951dada9f5682fe449dc385e2d
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/krb5-devel-1.5.1-23.6.i586.rpm
dd2d611d86a420e45f5cacce9d7fdec1
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/i586/krb5-server-1.5.1-23.6.i586.rpm
5daa3fedc4198ebb7b4d0a8127bed8ed
SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/krb5-1.4.3-19.22.i586.rpm
09da59a0aaafd6c8d22321752f2c38d3
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/krb5-devel-1.4.3-19.22.i586.rpm
0840fcc71f5b4e97beb835e0e25dedbc
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/i586/krb5-server-1.4.3-19.22.i586.rpm
9d23419758f2b0a69ba143dbacbc9f0a
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/krb5-1.4.1-5.7.i586.rpm
32b71e707e4ec85b0eee500de51a89cf
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/krb5-devel-1.4.1-5.7.i586.rpm
f71c6582dcb3a74a804a4143ff6f48c3
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/i586/krb5-server-1.4.1-5.7.i586.rpm
22b2f9c5cc94918a58c8c5e1b4d6296d
Power PC Platform:
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/krb5-1.5.1-23.6.ppc.rpm
cdf7854a981af8b5b9e4ad5d0eca9c7d
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/krb5-devel-1.5.1-23.6.ppc.rpm
5aba32af56d726c3616cc4260a69a848
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/ppc/krb5-server-1.5.1-23.6.ppc.rpm
a1ab8842ba74f4b2a3e2cba56d730556
SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/krb5-1.4.3-19.22.ppc.rpm
aa13e756476c571bdb9d1f909ffdd2d9
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/krb5-devel-1.4.3-19.22.ppc.rpm
c121580b3e9392f8de76efda8d5dd551
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/ppc/krb5-server-1.4.3-19.22.ppc.rpm
aabf1f7df56922b01d67213af2cfc0af
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/krb5-1.4.1-5.7.ppc.rpm
069361f8698af89dc366bf3d2cdf7239
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/krb5-devel-1.4.1-5.7.ppc.rpm
e440e4b49b571b8bf9ebf0f9200d29c3
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/ppc/krb5-server-1.4.1-5.7.ppc.rpm
4188e3334beceefce3cab6aa8429a16c
x86-64 Platform:
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/krb5-1.5.1-23.6.x86_64.rpm
edff62bb110662ee8a16f51b69c684c2
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/krb5-32bit-1.5.1-23.6.x86_64.rpm
af81d30ce34ee7c0c708a8c0f17d81a5
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/krb5-devel-1.5.1-23.6.x86_64.rpm
7d204e67fa211a528acedd6980925686
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/krb5-devel-32bit-1.5.1-23.6.x86_64.rpm
8036b0e78e1fea05e895b7d2c5717538
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/x86_64/krb5-server-1.5.1-23.6.x86_64.rpm
14238f108e2375205961a73ec15ecbde
SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/krb5-1.4.3-19.22.x86_64.rpm
0c46b69cf856956753908711a391ca3c
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/krb5-32bit-1.4.3-19.22.x86_64.rpm
cd9562c71d1439f9ea1b7fd29b2a2a15
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/krb5-devel-1.4.3-19.22.x86_64.rpm
624a0d8362e07050d705642f12e6109e
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/krb5-devel-32bit-1.4.3-19.22.x86_64.rpm
30cd873aa47a0006d5e402e2280d311f
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/x86_64/krb5-server-1.4.3-19.22.x86_64.rpm
6149c3d8873ebbdf0549f74eabd61a0e
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/krb5-1.4.1-5.7.x86_64.rpm
eaf8552be5695919d2d7a058339c4d1f
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/krb5-32bit-1.4.1-5.7.x86_64.rpm
146f189e550f82bc987cde96a0b13086
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/krb5-devel-1.4.1-5.7.x86_64.rpm
5bd145009778a85a0e8d26f58cf976c6
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/krb5-devel-32bit-1.4.1-5.7.x86_64.rpm
21418e68ed403d5bc822e8e31473bc57
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/x86_64/krb5-server-1.4.1-5.7.x86_64.rpm
2c55efe366234d32d547c85ffe3e78a2
Sources:
openSUSE 10.2:
ftp://ftp.suse.com/pub/suse/update/10.2/rpm/src/krb5-1.5.1-23.6.src.rpm
e3a6f207ca990afd58afec40b3b08aea
SUSE LINUX 10.1:
ftp://ftp.suse.com/pub/suse/update/10.1/rpm/src/krb5-1.4.3-19.22.src.rpm
a29ba835ba013e45102b136d7c0f89a8
SUSE LINUX 10.0:
ftp://ftp.suse.com/pub/suse/i386/update/10.0/rpm/src/krb5-1.4.1-5.7.src.rpm
b4a34b1b66194f86cd6163aa9a5879b4
Our maintenance customers are notified individually. The packages are
offered for installation from the maintenance web:
SUSE Linux Enterprise Server 10 SP1
http://support.novell.com/techcenter/psdb/b25610d8b470e16c60af96095d35faae.h...
SLE SDK 10 SP1
http://support.novell.com/techcenter/psdb/b25610d8b470e16c60af96095d35faae.h...
SUSE Linux Enterprise Desktop 10 SP1
http://support.novell.com/techcenter/psdb/b25610d8b470e16c60af96095d35faae.h...
______________________________________________________________________________
5) Pending Vulnerabilities, Solutions, and Work-Arounds:
See SUSE Security Summary Report.
______________________________________________________________________________
6) Authenticity Verification and Additional Information
- Announcement authenticity verification:
SUSE security announcements are published via mailing lists and on Web
sites. The authenticity and integrity of a SUSE security announcement is
guaranteed by a cryptographic signature in each announcement. All SUSE
security announcements are published with a valid signature.
To verify the signature of the announcement, save it as text into a file
and run the command
gpg --verify <file>
replacing <file> with the name of the file where you saved the
announcement. The output for a valid signature looks like:
gpg: Signature made <DATE> using RSA key ID 3D25D3D9
gpg: Good signature from "SuSE Security Team "
where <DATE> is replaced by the date the document was signed.
If the security team's key is not contained in your key ring, you can
import it from the first installation CD. To import the key, use the
command
gpg --import gpg-pubkey-3d25d3d9-36e12d04.asc
- Package authenticity verification:
SUSE update packages are available on many mirror FTP servers all over the
world. While this service is considered valuable and important to the free
and open source software community, the authenticity and the integrity of
a package needs to be verified to ensure that it has not been tampered
with.
There are two verification methods that can be used independently from
each other to prove the authenticity of a downloaded file or RPM package:
1) Using the internal gpg signatures of the rpm package
2) MD5 checksums as provided in this announcement
1) The internal rpm package signatures provide an easy way to verify the
authenticity of an RPM package. Use the command
rpm -v --checksig
to verify the signature of the package, replacing with the
filename of the RPM package downloaded. The package is unmodified if it
contains a valid signature from build@suse.de with the key ID 9C800ACA.
This key is automatically imported into the RPM database (on
RPMv4-based distributions) and the gpg key ring of 'root' during
installation. You can also find it on the first installation CD and at
the end of this announcement.
2) If you need an alternative means of verification, use the md5sum
command to verify the authenticity of the packages. Execute the command
md5sum
after you downloaded the file from a SUSE FTP server or its mirrors.
Then compare the resulting md5sum with the one that is listed in the
SUSE security announcement. Because the announcement containing the
checksums is cryptographically signed (by security@suse.de), the
checksums show proof of the authenticity of the package if the
signature of the announcement is valid. Note that the md5 sums
published in the SUSE Security Announcements are valid for the
respective packages only. Newer versions of these packages cannot be
verified.
- SUSE runs two security mailing lists to which any interested party may
subscribe:
opensuse-security@opensuse.org
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail to
.
opensuse-security-announce@opensuse.org
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an e-mail to
.
=====================================================================
SUSE's security contact is or .
The public key is listed below.
=====================================================================
______________________________________________________________________________
The information in this advisory may be distributed or reproduced,
provided that the advisory is not modified in any way. In particular, the
clear text signature should show proof of the authenticity of the text.
SUSE Linux Products GmbH provides no warranties of any kind whatsoever
with respect to the information contained in this security advisory.
Type Bits/KeyID Date User ID
pub 2048R/3D25D3D9 1999-03-06 SuSE Security Team
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key
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Marcus Meissner