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______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2005:023
Date: Fri, 14 Oct 2005 12:00:00 +0000
Cross-References: CAN-2005-2495, CAN-2005-2933, CAN-2005-2960
CAN-2005-2964, CAN-2005-3011

Content of this advisory:
1) Solved Security Vulnerabilities:
- imap-lib crashes in client library
- texinfo temporary file handling fixes
- cfengine temporary file handling fixes
- abiword buffer overflow in RTF import filter
- various vnc servers affected by the pixmap integer overflow
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
None listed.
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.

- imap-lib crashes in client library

The client part of the University of Washington IMAP implementation
is prone to a buffer overflow while parsing mailbox names. This
bug can probably be exploited by a remote attacker to execute
arbitrary code with the privileges of the user running the affected
mail client. (CAN-2005-2933). The 'imapd' that is included in the
"imap" package itself is not affected by this problem.

This problem affects all SUSE Linux based products.

- texinfo temporary file handling fixes

The handling of temporary files in the texinfo package was
enhanced. Previous versions can be exploited by local users to
overwrite arbitrary files. (CAN-2005-3011)

This affects all SUSE Linux based products.

- cfengine temporary file handling fixes

This update of cfengine improves the handling of temporary files.
This bug can be exploited locally and probably be used to escalate
privileges. (CAN-2005-2960)

This affects SUSE Linux 9.0 up to 10.0.

- abiword buffer overflow in RTF import filter

The Abiword word processor was updated to fix several buffer
overflows that can be triggered by parsing malformed RTF documents
(CAN-2005-2964). Thanks to Chris Evans.

This affects SUSE Linux 9.0 (package name abiword2), SUSE Linux
9.1 up to 10.0 (package name abiword).

- various vnc servers affected by the pixmap integer overflow

Various VNC Servers were also affected by the integer overflow
problem in the pixmap handling (CAN-2005-2495). An attacker may
be able to exploit this bug to execute code remotely.

SUSE Linux Enterprise Server 8, SUSE Linux Desktop 1 used the "vnc"
package, newer products use the "XFree86-vnc" or "xorg-x11-vnc"
packages.

All SUSE Linux based products were affected and fixed packages
were released.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

None listed.
______________________________________________________________________________

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
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 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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