______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2005:015
Date: Tue, 07 Jun 2005 12:00:00 +0000
Cross-References: CAN-2005-1260
CAN-2005-1391
CAN-2005-1261

Content of this advisory:
1) Solved Security Vulnerabilities:
- bzip2 decompression bomb
- pound crash by overflow
- gaim buffer overflow

2) Pending Vulnerabilities, Solutions, and Work-Arounds:

- postgresql
- perl-Net-Server

3) Authenticity Verification and Additional Information

______________________________________________________________________________

1) Solved Security Vulnerabilities

To avoid flooding mailing lists with SUSE Security Announcements for minor
issues, SUSE Security releases weekly summary reports for the low profile
vulnerability fixes. The SUSE Security Summary Reports do not list md5 sums
or download URLs like the SUSE Security Announcements that are released for
more severe vulnerabilities.

Fixed packages for the following incidents are already available on our FTP
server and via the YaST Online Update.

- bzip2 decompression bomb

bzip2 could crash or run into an endless loop when decompressing
certain specially crafted archives. This problem has been fixed.

This issue is tracked by the Mitre CVE ID CAN-2005-1260 and affects
all SUSE Linux based distributions.


- pound

A security problem in pound, a reverse proxying server, was fixed
where clients with too long host names could trigger crashes by
overflowing a buffer.

This is tracked by the Mitre CVE ID CAN-2005-1391.

This affects SUSE Linux 9.2 and 9.3.


- gaim

A buffer overflow in the URL handling code of gaim has been fixed.
Remote attackers could exploit this bug to execute arbitrary code
under the privileges of the user running gaim.

The Mitre CVE ID CAN-2005-1261 has been assigned to this issue.

This affects all SUSE Linux Box products, SUSE Linux Desktop 1 and
Novell Linux Desktop 9.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- postgresql

Two security errors in PostgreSQL may allow an unprivileged database
user to crash the backend process or allow an unprivileged user to
gain the privileges of a database superuser.

To fix those problems please carefully read the instructions on
http://www.postgresql.org/about/news.315

This is tracked by the Mitre CVE IDs CAN-2005-1409 and CAN-2005-1410

All SUSE LINUX based products except for SLES8 are affected.

- perl-Net-Server
We earlier reported a format string problem in the perl-Net-Server
perl modules. Against earlier suspicions this cannot be used to execute
code, but just to crash (denial of service) the respective service.

This is tracked by the Mitre CVE ID CAN-2005-1127.
______________________________________________________________________________

3) 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 containing 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 <security@suse.de>"

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 integrity of a
package needs to be verified to ensure that it has not been tampered with.

The internal 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, replacing <file.rpm> with the
file name 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 included at the end of this
announcement.

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

suse-security@suse.com
- General Linux and SUSE security discussion.
All SUSE security announcements are sent to this list.
To subscribe, send an e-mail 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 e-mail 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>.

====================================================================
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, 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 <security@suse.de>
pub 1024D/9C800ACA 2000-10-19 SuSE Package Signing Key <build@suse.de>

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