SUSE Security Announcement: cvs (SUSE-SA:2005:024)
Posted on: 04/18/2005 08:58 AM

A security announcement from SUSE:

______________________________________________________________________________

SUSE Security Announcement

Package: cvs
Announcement-ID: SUSE-SA:2005:024
Date: Monday, Apr 18st 2005 13:30 MEST
Affected products: 8.2, 9.0, 9.1, 9.2, 9.3
SUSE CORE 9 for x86
SuSE Linux Enterprise Server 8, 9
UnitedLinux 1.0
School-Server 1
Open-Enterprise-Server 9
Vulnerability Type: remote code execution
Severity (1-10): 6
SUSE default package: No
Cross References: CAN-2005-0753

Content of this advisory:
1) security vulnerability resolved: buffer overflow and memory access
problem in cvs
problem description
2) solution/workaround
3) special instructions and notes
4) package location and checksums
5) pending vulnerabilities, solutions, workarounds:
- IDN (Internationalized Domain Name) cloaking
- PostgreSQL
- Mozilla
- OpenOffice_org
6) standard appendix (further information)

______________________________________________________________________________

1) problem description, brief discussion

The Concurrent Versions System (CVS) offers tools which allow developers
to share and maintain large software projects.
The current maintainer of CVS reported various problems within CVS
such as a buffer overflow and memory access problems which have
been fixed within the available updates.
The CVE project has assigned the CAN number CAN-2005-0753.

2) solution/workaround

There is no easy workaround except shutting down the CVS server.

3) special instructions and notes

No special actions need to be taken after installing this update.

4) package location and checksums

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 for installation from the maintenance web.

x86 Platform:

SUSE Linux 9.3:
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/cvs-1.12.11-4.2.i586.rpm
8e27dd3b7a9867940830aa9dd8fd95bc
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/cvs-1.12.11-4.2.i586.patch.rpm
acd6904641df500ca50da8147ee54019
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/cvs-1.12.11-4.2.src.rpm
6a075a97c2bd30ade965e90e0f9671c4

SUSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/cvs-1.12.9-2.2.i586.rpm
7192dce3bb42cd51c98a3510e9e5e73a
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/cvs-1.12.9-2.2.i586.patch.rpm
ae4b8f9096b50e7f1c3a15e715e4c8e7
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/cvs-1.12.9-2.2.src.rpm
cebc4e07ac34f6a6f76789d6ce0eba37

SUSE Linux 9.1:
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.10.i586.rpm
07778aea3050bcf05c96ae680b9d01e4
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/cvs-1.11.14-24.10.i586.patch.rpm
60591530555521e34d798a0d0365686a
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/cvs-1.11.14-24.10.src.rpm
bd4b0324b51cee45f247e41f2f6139d4

SUSE Linux 9.0:
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-85.i586.rpm
795f6e5a6849706bb439366129833841
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/cvs-1.11.6-85.i586.patch.rpm
ec2bb29f912831f9d5e7dd15ec950d9b
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/cvs-1.11.6-85.src.rpm
a3695ffd8f741a9f376e5e3244d412c8

SUSE Linux 8.2:
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-116.i586.rpm
6fc24ea4712d10855e60d26b9262f48c
patch rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/cvs-1.11.5-116.i586.patch.rpm
7b4e1cae79c33c4965b53159bd888a70
source rpm(s):
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/cvs-1.11.5-116.src.rpm
401896062510804b79ba75a5e800d9e2



x86-64 Platform:

SUSE Linux 9.3:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.3/rpm/x86_64/cvs-1.12.11-4.2.x86_64.rpm
db2665d2e95762aa2c376fed929c44f1
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.3/rpm/x86_64/cvs-1.12.11-4.2.x86_64.patch.rpm
8b3070a29bd15c430980937b53928640
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.3/rpm/src/cvs-1.12.11-4.2.src.rpm
6a075a97c2bd30ade965e90e0f9671c4

SUSE Linux 9.2:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/cvs-1.12.9-2.2.x86_64.rpm
21518326918a0a7e42176b60544e214e
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/cvs-1.12.9-2.2.x86_64.patch.rpm
8bbb9b4bda742cb62836b6a6453aef2c
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/cvs-1.12.9-2.2.src.rpm
cebc4e07ac34f6a6f76789d6ce0eba37

SUSE Linux 9.1:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.10.x86_64.rpm
7543263ca5374da3a9926cde6c8bd58c
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/cvs-1.11.14-24.10.x86_64.patch.rpm
1b245e5669be7b6e082c67d5e094466a
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/cvs-1.11.14-24.10.src.rpm
8c399e20f6046faa3de70ae0fc133060

SUSE Linux 9.0:
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-85.x86_64.rpm
708318fbf0d27efd212c16ac26f63003
patch rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/cvs-1.11.6-85.x86_64.patch.rpm
7d5f303351ae584f07998847cc476f7c
source rpm(s):
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/cvs-1.11.6-85.src.rpm
ff6eddc0257dfd8dfa1b97653117d2c7

______________________________________________________________________________

5) Pending vulnerabilities in SUSE Distributions and Workarounds:

- IDN (Internationalized Domain Name) cloaking / homograph attacks

Problems with the IDN / punycode handling that allows non-ASCII
domain names were reported for every browser.

- The KDE approach is currently filtering on the top level domain.
- The Mozilla approach is currently to display punycode.

We have released Mozilla Firefox and KDE / konqueror updates for
this problem, the others (mozilla suite and opera) are still pending.


- PostgreSQL problems

Additional PostgreSQL problems were reported:
- A local user could bypass the EXECUTE permission check for
functions by using the CREATE AGGREGATE command. CAN-2005-0244

- Other earlier listed problems are already fixed.

We are still working on updates for this problem.


- new Mozilla security problems

Several new Mozilla browser security problems have been reported.

We are currently addressing these issues.

- OpenOffice_org heap overflow
A heap overflow was found in the MS Word document handing of
OpenOffice_org, allowing a remote attacker to execute code via a
handcrafted .doc file.

We are preparing updates for this issue.

______________________________________________________________________________

6) 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 recommend against subscribing to security lists that cause the
e-mail 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
file name of the rpm package that you have downloaded. Of course,
package authenticity verification can only target an uninstalled 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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