SuSE Security Announcement: samba (SuSE-SA:2002:045)
-----BEGIN PGP SIGNED MESSAGE-----
______________________________________________________________________________
SuSE Security Announcement
Package: samba
Announcement-ID: SuSE-SA:2002:045
Date: Wednesday, November 20th 2002 16:00 MET
Affected products: 7.2, 7.3, 8.0, 8.1
SuSE Linux Database Server,
SuSE eMail Server III, 3.1
SuSE Linux Enterprise Server 7+8,
SuSE Linux Firewall on CD/Admin host
SuSE Linux Connectivity Server
SuSE Linux Office Server
Vulnerability Type: possible remote code execution
Severity (1-10): 7
SuSE default package: no
Cross References: http://www.samba.org/
Content of this advisory:
1) security vulnerability resolved: samba
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
Samba developer Steve Langasek found a security problem in samba, the
widely known free implementation of the SMB protocol.
The error consists of a buffer overflow in a commonly used routine
that accepts user input and may write up to 127 bytes past the end of
the buffer allocated with static length, leaving enough room for
an exploit. The resulting vulnerability can be exploited locally
in applications using the pam_smbpass Pluggable Authentication Module
(PAM). It may be possible to exploit this vulnerability remotely,
causing the running smbd to crash or even to execute arbitrary code.
The samba package is installed by default only on the SuSE Linux
Enterprise Server. SuSE Linux products do not have the samba and
samba-client packages installed by default.
The samba packages in SuSE Linux version 7.1 and before are not affected
by this vulnerability.
For the bug to be exploited, your system has to be running the smbd
samba server, or an administrator must have (manually) changed the
configuration of the PAM authentification subsystem to enable the use
of the pam_smbpass module. The samba server process(es) are not activated
automatically after installation (of the package).
The samba subsystem on SuSE products is split into two different
subpackages: samba and smbclnt up to and including SuSE Linux 7.2, on
SuSE Linux 7.3 and newer the package names are samba and samba-client.
To completely remove the vulnerability, you should update all of the
installed packages.
We wish to express our gratitude to the samba development team and
in particular to Steve Langasek and Volker Lendecke who provided the
patches and communicated them to the vendors. Please know that the
samba team will release the new version 2.2.7 of the samba software to
address the security fix at the same time as this announcement gets
published. More information about samba (and the security fix) is
available at http://www.samba.org.
Please download the update package for your distribution and verify its
integrity by the methods listed in section 3) of this announcement.
Then, install the package using the command "rpm -Fhv file.rpm" to apply
the update.
Our maintenance customers are being notified individually. The packages
are being offered to install from the maintenance web.
SPECIAL INSTALL INSTRUCTIONS:
==============================
After successfully installing the update packages, you should restart
the samba server process(es) to make the changes in the system effective.
If you do not have a samba server running on your system, no further
action is required. If you have a samba server running, please run the
following command as root:
rcsmb restart # SuSE Linux, all versions
rcnmb restart # only on SuSE Linux 8.1
Intel i386 Platform:
SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-2.2.5-124.i586.rpm
f0a94ef6cc49165d4dace59caaf359d7
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-client-2.2.5-124.i586.rpm
f694fb4aaabffa98b6a76941cb2c0eaf
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-2.2.5-124.i586.patch.rpm
af43bc1d5dc1b097389933f34ca5a625
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/samba-client-2.2.5-124.i586.patch.rpm
bff278f9366df7efe72fa880c4f7618f
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/samba-2.2.5-124.src.rpm
674adb466663259c2117852b9525a29a
SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/samba-2.2.3a-165.i386.rpm
8c7edd09c5acfc269467ecbcdcdfc21c
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/samba-client-2.2.3a-165.i386.rpm
bfc08a1d64f0d85670041c7046d1e775
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n2/samba-2.2.3a-165.i386.patch.rpm
7d08c2c07137d9da0b3d1a301295a084
ftp://ftp.suse.com/pub/suse/i386/update/8.0/n1/samba-client-2.2.3a-165.i386.patch.rpm
887230d4ed61bec496dff73c50fa3de0
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/samba-2.2.3a-165.src.rpm
b208c4d5bcceb7f9cc18df75b7831d2d
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n2/samba-2.2.1a-206.i386.rpm
dc4232333a0babbb257cff346609625f
ftp://ftp.suse.com/pub/suse/i386/update/7.3/n1/samba-client-2.2.1a-206.i386.rpm
163a565a5a0b0320eae6ba1d0ebdfb27
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.3/zq1/samba-2.2.1a-206.src.rpm
6086e3bb296a320c28fced9068c931fc
SuSE-7.2:
ftp://ftp.suse.com/pub/suse/i386/update/7.2/n2/samba-2.2.0a-45.i386.rpm
184b17987ca99325782f4c7f9e04b6a6
ftp://ftp.suse.com/pub/suse/i386/update/7.2/n1/smbclnt-2.2.0a-45.i386.rpm
b9926ade015ccaf271088da246814abb
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/7.2/zq1/samba-2.2.0a-45.src.rpm
384ec49b0b8a81d8ecf7c84ef0fa2689
Sparc Platform:
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n2/samba-2.2.1a-69.sparc.rpm
61b72787bc8e0b333662962a60bce0c2
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/n1/samba-client-2.2.1a-69.sparc.rpm
6acd0ffd218d721d7c10b17e1194738d
source rpm(s):
ftp://ftp.suse.com/pub/suse/sparc/update/7.3/zq1/samba-2.2.1a-69.src.rpm
77f57a3277bb1a270ae79bc94ee28345
PPC Power PC Platform:
SuSE-7.3:
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n2/samba-2.2.1a-141.ppc.rpm
d127afabc7d5b764289f9b65ad4c4cd1
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/n1/samba-client-2.2.1a-141.ppc.rpm
894132f3b5041a54ec871d67eef072e5
source rpm(s):
ftp://ftp.suse.com/pub/suse/ppc/update/7.3/zq1/samba-2.2.1a-141.src.rpm
ccff812fdddd3af9d62a399f63e0405e
______________________________________________________________________________
2) Pending vulnerabilities in SuSE Distributions and Workarounds:
- 7.0 update trees
We will move the SuSE Linux 7.0 update tree structure to the
/pub/suse/discontinued/ tree shortly, following the announcement about
discontinued products on Tue, 29 Oct 2002.
______________________________________________________________________________
3) standard appendix: authenticity verification, additional information
- Package authenticity verification:
SuSE update packages are available on many mirror ftp servers all over
the world. While this service is being considered valuable and important
to the free and open source software community, many users wish to be
sure about the origin of the package and its content before installing
the package. 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) md5sums as provided in the (cryptographically signed) announcement.
2) using the internal gpg signatures of the rpm package.
1) execute the command
md5sum
Hi, I have a problem with YOU and samba. I will install the samba update via YOU. I selected Manual Update because I will see what Updates are needed for my Systems. So YOU connect to the Updateserver www.suse.com and the others but I can not find the samba-update. Why? Where is the Problem? Regards Soeren * Roman Drahtmueller schrieb am 20 Nov 2002:
Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web.
SPECIAL INSTALL INSTRUCTIONS: ============================== After successfully installing the update packages, you should restart the samba server process(es) to make the changes in the system effective. If you do not have a samba server running on your system, no further action is required. If you have a samba server running, please run the following command as root: rcsmb restart # SuSE Linux, all versions rcnmb restart # only on SuSE Linux 8.1
Hallo Soeren,
I have a problem with YOU and samba. I will install the samba update via YOU. I selected Manual Update because I will see what Updates are needed for my Systems. So YOU connect to the Updateserver www.suse.com and the others but I can not find the samba-update. Why? Where is the Problem?
--> It worked without problems for me with SuSE 7.3 and 8.0. Which distribution are you using ? Second question: have you checked that the "samba" package is installed ? What does "rpm -q samba" and "rpm -q samba-client" say ? Maybe the newest version was already installed the last time you ran YOU ? Usually the updates are on the FTP-servers a little earlier than the announcement. HTH, Armin
Hi Armin, * Armin Schöch schrieb am 22 Nov 2002:
--> It worked without problems for me with SuSE 7.3 and 8.0. Which distribution are you using ?
Yes, after I pressed the "send" button, I remember that I forget the distribution. It is SuSE 8.1
Second question: have you checked that the "samba" package is installed ? What does "rpm -q samba" and "rpm -q samba-client" say ?
Yes samba is installed, samba-2.2.5-80. But this is one of the problems. When I use manual update I must see all packages, and not only these where are installed. ;)
Maybe the newest version was already installed the last time you ran YOU ? Usually the updates are on the FTP-servers a little earlier than the announcement.
Yes I know this. But this is the second time I run YOU on this system. Greets Soeren
Hi !
Second question: have you checked that the "samba" package is installed ? What does "rpm -q samba" and "rpm -q samba-client" say ?
Yes samba is installed, samba-2.2.5-80.
But this is one of the problems. When I use manual update I must see all packages, and not only these where are installed. ;)
--> You see a list of all patches that are available for your distribution (as long as there are patch files :-( Only those packages that are installed have an "X" if there is a new patch that is not already installed. And YOU downloads the list of patches every time. "fou4s" does only download new patches, I think (see http://fou4s.gaugusch.at/) Armin
Hi Armin, * Armin Schöch schrieb am 22 Nov 2002:
--> You see a list of all patches that are available for your distribution (as long as there are patch files :-( Only those packages that are installed have an "X" if there is a new patch that is not already installed.
Not in SuSE 8.1 ;)
And YOU downloads the list of patches every time. "fou4s" does only download new patches, I think (see http://fou4s.gaugusch.at/)
Yes I know this. But I can not use it here in this Server environment. Soeren
--> You see a list of all patches that are available for your distribution (as long as there are patch files :-( Only those packages that are installed have an "X" if there is a new patch that is not already installed.
Not in SuSE 8.1 ;)
Fixing... Roman.
Oh, I have forgot: I use SuSE 8.1 Regards Soeren * Soeren Mindorf schrieb am 22 Nov 2002:
Hi,
I have a problem with YOU and samba. I will install the samba update via YOU. I selected Manual Update because I will see what Updates are needed for my Systems. So YOU connect to the Updateserver www.suse.com and the others but I can not find the samba-update. Why? Where is the Problem?
Regards
Soeren
* Roman Drahtmueller schrieb am 20 Nov 2002:
Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web.
SPECIAL INSTALL INSTRUCTIONS: ============================== After successfully installing the update packages, you should restart the samba server process(es) to make the changes in the system effective. If you do not have a samba server running on your system, no further action is required. If you have a samba server running, please run the following command as root: rcsmb restart # SuSE Linux, all versions rcnmb restart # only on SuSE Linux 8.1
Soeren Mindorf schrieb:
Hi,
I have a problem with YOU and samba. I will install the samba update via YOU. I selected Manual Update because I will see what Updates are needed for my Systems. So YOU connect to the Updateserver www.suse.com and the others but I can not find the samba-update. Why? Where is the Problem?
There is no patch file on the server in update/8.1/patches for samba. Klaus
Regards
Soeren
* Roman Drahtmueller schrieb am 20 Nov 2002:
Please download the update package for your distribution and verify its integrity by the methods listed in section 3) of this announcement. Then, install the package using the command "rpm -Fhv file.rpm" to apply the update. Our maintenance customers are being notified individually. The packages are being offered to install from the maintenance web.
SPECIAL INSTALL INSTRUCTIONS: ============================== After successfully installing the update packages, you should restart the samba server process(es) to make the changes in the system effective. If you do not have a samba server running on your system, no further action is required. If you have a samba server running, please run the following command as root: rcsmb restart # SuSE Linux, all versions rcnmb restart # only on SuSE Linux 8.1
Hi Klaus, * ruhwinkel schrieb am 22 Nov 2002: [...]
the others but I can not find the samba-update. Why? Where is the Problem?
There is no patch file on the server in update/8.1/patches for samba.
And why does it belong to? How can I Update these packages with YOU? Soeren
Soeren Mindorf schrieb:
Hi Klaus,
* ruhwinkel schrieb am 22 Nov 2002: [...]
the others but I can not find the samba-update. Why? Where is the Problem?
There is no patch file on the server in update/8.1/patches for samba.
And why does it belong to?
How can I Update these packages with YOU?
Soeren
download the files and install manually rpm -Uhv filename or wait for the file. Klaus
participants (4)
-
Armin Schöch -
Roman Drahtmueller -
ruhwinkel -
Soeren Mindorf