cvs (SuSE-SA:2004:015)
Posted on: 06/09/2004 11:30 AM

SUSE has released a cvs update

______________________________________________________________________________

SUSE Security Announcement

Package: cvs
Announcement-ID: SuSE-SA:2004:015
Date: Wed Jun 9 15:00:00 MEST 2004
Affected products: 8.0, 8.1, 8.2, 9.0, 9.1
SuSE Firewall on CD 2 - VPN
SuSE Firewall on CD 2
SuSE Linux Enterprise Server 7, 8
SuSE Linux Office Server
UnitedLinux 1.0
Vulnerability Type: remote command execution
Severity (1-10): 6
SUSE default package: No.
Cross References: CAN-2004-0416
CAN-2004-0417
CAN-2004-0418

Content of this advisory:
1) security vulnerability resolved: various security issues in cvs problem description, discussion, solution and upgrade information
2) pending vulnerabilities, solutions, workarounds:
- icecast
- sitecopy
- cadaver
- tla
- OpenOffice_org
- tripwire
- postgresql
- lha
- apache/mod_ssl
3) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion, solution, upgrade information

The Concurrent Versions System (CVS) offers tools which allow developers
to share and maintain large software projects.
Various remotely exploitable conditions have been found during a
source code review of CVS done by Stefan Esser and Sebastian Krahmer
(SuSE Security-Team).
These bugs allow remote attackers to execute arbitrary code as the user
the CVS server runs as. Since there is no easy workaround we strongly
recommend to update the cvs package.
The update packages fix vulnerabilities which have been assigned the
CAN numbers CAN-2004-0416, CAN-2004-0417 and CAN-2004-0418.
The cvs packages shipped by SUSE (as well as our recent updates for CVS)
are not vulnerable to CAN-2004-0414.

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.


Intel i386 Platform:

SuSE-9.1:
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.6.i586.rpm
47731cff36f671c97e90a8b304dfa508
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.6.i586.patch.rpm
d9aaad71404029c53d3972f035f58b41
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/cvs-1.11.14-24.6.src.rpm
f3fdcd3355df637c34d1c2058be48fba

SuSE-9.0:
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-83.i586.rpm
b2c14b51a074fd8059af6d084d2684bd
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-83.i586.patch.rpm
e22c93b42f31ac7e9319cf31a266f6c0
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/cvs-1.11.6-83.src.rpm
211950707baf445fbe87fd73b243da18

SuSE-8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-114.i586.rpm
c9e1680bd0fa4fb5239e89747add07e9
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-114.i586.patch.rpm
8cabcc36b298326e738311cad37f32dc
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/cvs-1.11.5-114.src.rpm
ebeca38a0d002044c68c20bfc051b14f

SuSE-8.1:
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-332.i586.rpm
597bac9a562582828b1f5cadd30f004f
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/cvs-1.11.1p1-332.i586.patch.rpm
fc1a12767ad7e2fbfb7294cc4112b2f7
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/cvs-1.11.1p1-332.src.rpm
fb51cfd019b7f84857b6c6454b21418d

SuSE-8.0:
ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-332.i386.rpm
67de2e7aed4d0cc282965118bd1afb66
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/d3/cvs-1.11.1p1-332.i386.patch.rpm
9a1a381eba6312ab168e22c7d519a93a
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/cvs-1.11.1p1-332.src.rpm
b10baa53b3e0e4a1d0839cb5d4696215


Opteron x86_64 Platform:

SuSE-9.1:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.6.x86_64.rpm
6aec551d7128a714e40cc30e94b8f885
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.6.x86_64.patch.rpm
64cb1180ab428731febd8259da9cf15d
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/cvs-1.11.14-24.6.src.rpm
98bb92fa2691254c2928cb54a9b40767

SuSE-9.0:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-83.x86_64.rpm
c913bf7436b3e7b9ccc1dda4a4af6f41
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-83.x86_64.patch.rpm
5bbdbaf7ea7df6d57c8c1581e2ca5d87
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/cvs-1.11.6-83.src.rpm
f2953162aa93eb55b9f4c5200bedde6d

______________________________________________________________________________

2) Pending vulnerabilities in SUSE Distributions and Workarounds:

- icecast
The icecast service is vulnerable to a remote denial-of-service
attack. Update packages will be available soon.

- sitecopy
The sitecopy package includes a vulnerable version of the
neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be
available soon.

- cadaver
The cadaver package includes a vulnerable version of the
neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be
available soon.

- tla
The tla package includes a vulnerable version of the
neon library (CAN-2004-0179, CAN-2004-0398). Update packages will be
available soon.

- OpenOffice_org
The OpenOffice_org package includes a vulnerable version
of the neon library (CAN-2004-0179, CAN-2004-0398). Update packages
will be available soon.

- tripwire
A format string bug in tripwire can be exploited locally
to gain root permissions. Update packages will be available soon.

- postgresql
A buffer overflow in psqlODBC could be exploited to crash the
application using it. E.g. a PHP script that uses ODBC to access a
PostgreSQL database can be utilized to crash the surrounding Apache
webserver. Other parts of PostgreSQL are not affected.
Update packages will be available soon.

- lha
Minor security fix for a buffer overflow while handling command
line options. This buffer overflow could be exploited in conjunction
with other mechanisms to gain higher privileges or access the system
remotely.

- apache/mod_ssl
A buffer overflow in a uuencode function of mod_ssl has been fixed as
well as various minor bugs (CAN-2003-0987, CAN-2003-0020, CAN-2004-0174
and CAN-2003-0993). New packages are available on our ftp servers.

______________________________________________________________________________

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 name-of-the-file.rpm
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
announcement. Since the announcement containing the checksums is
cryptographically signed (usually using the key security@suse.de),
the checksums show proof of the authenticity of the package.
We disrecommend to subscribe to security lists which cause the
email message containing the announcement to be modified so that
the signature does not match after transport through the mailing
list software.
Downsides: You must be able to verify the authenticity of the
announcement in the first place. If RPM packages are being rebuilt
and a new version of a package is published on the ftp server, all
md5 sums for the files are useless.

2) rpm package signatures provide an easy way to verify the authenticity
of an rpm package. Use the command
rpm -v --checksig file.rpm
to verify the signature of the package, where <file.rpm> is the
filename of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an un-installed rpm
package file.
Prerequisites:
a) gpg is installed
b) The package is signed using a certain key. The public part of this
key must be installed by the gpg program in the directory
~/.gnupg/ under the user's home directory who performs the
signature verification (usually root). You can import the key
that is used by SUSE in rpm packages for SUSE Linux by saving
this announcement to a file ("announcement.txt") and
running the command (do "su -" to be root):
gpg --batch; gpg < announcement.txt | gpg --import
SUSE Linux distributions version 7.1 and thereafter install the
key "build@suse.de" upon installation or upgrade, provided that
the package gpg is installed. The file containing the public key
is placed at the top-level directory of the first CD (pubring.gpg)
and at ftp://ftp.suse.com/pub/suse/pubring.gpg-build.suse.de .


- SUSE runs two security mailing lists to which any interested party may
subscribe:

suse-security@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@suse.com.

suse-security-announce@suse.com
- SUSE's announce-only mailing list.
Only SUSE's security announcements are sent to this list.
To subscribe, send an email to
suse-security-announce-subscribe@suse.com.

For general information or the frequently asked questions (faq)
send mail to:
suse-security-info@suse.com or
suse-security-faq@suse.com respectively.

====================================================================
SUSE's security contact is security@suse.com or security@suse.de.
The security@suse.de 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,
it is desired that the clear-text signature shows proof of the
authenticity of the text.
SUSE Linux AG makes 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 security@suse.de
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key build@suse.de

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