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______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2006:029
Date: Tue, 19 Dec 2006 15:00:00 +0000
Cross-References: CVE-2006-5864, CVE-2006-6105, CVE-2006-6120
CVE-2006-6142

Content of this advisory:
1) Solved Security Vulnerabilities:
- koffice OLE import filter problem
- squirrelmail XSS problem
- evince code execution
- novell-lum empty password
- gdm format string problem
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- current kernel update
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.

- koffice OLE import filter problem

A security problem in the OLE import handling for PPT files of
Koffice was fixed, where attackers with crafted documents could
crash kpresenter and potentially execute code. (CVE-2006-6120)

This has been fixed for all SUSE Linux based distributions containing
koffice.

- squirrelmail XSS problem

Multiple cross site scripting bugs in squirrelmail have been fixed
(CVE-2006-6142)

- evince code execution

The PDF and Postscript viewer evince could be exploited to execute
code by supplying a specially crafted Postscript file that causes
a buffer overflow when being rendered (CVE-2006-5864).

All SUSE Linux products containing evince were affected by this
problem.

- novell-lum empty password

A security problem was fixed in "novell-lum", the eDirectory based
"Linux User Management". Under certain circumstances it was possible
to login to the console without any password. (ssh is not affected,
since it rejects empty passwords).

This problem affects SUSE Linux Enterprise Desktop 10 and Open
Enterprise Server 9.

- gdm format string problem

A format string bug in the program 'gdmchooser' could potentially be
exploited to execute code under a different user id. (CVE-2006-6105)

Since the desktop user has to enter this format string it is unlikely
that this can be exploited.

Only openSUSE 10.2 was affected by this problem, the code did not
exist in this form in older distributions.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- current kernel update
We are currently preparing the next kernel update round of our 2.6
kernels, scheduled to be delivered before Christmas.

There are no outstanding critical security problems, the release
target is mostly rolling in local denial of service problems and
other bugfixes.

The update kernels for SUSE Linux 9.3 and 10.0 have been released
already and will be included in the full advisory once all kernels
have been released.
______________________________________________________________________________

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:

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

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>.

=====================================================================
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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