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______________________________________________________________________________

SUSE Security Summary Report

Announcement ID: SUSE-SR:2007:005
Date: Fri, 30 Mar 2007 16:00:00 +0000
Cross-References: CVE-2007-0450, CVE-2007-0855, CVE-2007-1246
CVE-2007-1536, CVE-2007-1560

Content of this advisory:
1) Solved Security Vulnerabilities:
- xine-lib overflow in w32 codec handling
- tomcat directory traversal
- unrar password handling stack overflow
- squid remote denial of service
- file integer underflow
2) Pending Vulnerabilities, Solutions, and Work-Arounds:
- Month of PHP bugs
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.

- xine-lib overflow in w32 codec handling
The DirectShow code in xine-libs Win32 interface uses wrong
parameters in the memcpy function call which leads to a buffer
overflow if it can be triggered by the codec.

CVE-2007-1246 has been assigned to this issue and updates have been
released for all SUSE Linux based products containing xine-lib.

Note that if you do not have w32codecs installed you are not
affected.

- tomcat directory traversal
Certain characters of the URL were not properly filtered in the
Jakarta Tomcat server. This allowed directory reverse traversal
attacks to access the web-root of tomcat.

Updates were released for SLES 10 and SUSE Linux 9.3 up to 10.2,
the updates for SLES 9 are still pending.

This problem is tracked by the Mitre CVE ID CVE-2007-0450.

- unrar password handling stack overflow
A stack-based buffer overflow in unrar was fixed that can be
exploited with user-assistance by sending a password-protected
archive.

This problem has been fixed for all affected products and is tracked
by the Mitre CVE ID CVE-2007-0855.

- squid remote denial of service
A remote denial of service problem in Squid 2.6 was fixed which
could be used by proxy users to crash a squid instance (which
however immediately restarts).

This problem has the Mitre CVE ID CVE-2007-1560 and was fixed for
openSUSE 10.2. Older products are not affected by this problem
since they contain Squid versions before 2.6.

- file integer underflow
An integer underflow within the ELF header parsing in "file" has
been fixed which could lead to arbitrary code execution.

CVE-2007-1536 has been assigned to this issue and updates were
released for all SUSE Linux based products.

The glibc heap checking code detects the corruption and terminates
the program, so it is unclear if code execution is even theoretical
possible.
______________________________________________________________________________

2) Pending Vulnerabilities, Solutions, and Work-Arounds

- Month of PHP bugs

We are following the Month of PHP bugs closely and collect the
reported problems. Once the month of bugs is over, we will release
updated PHP packages.
______________________________________________________________________________

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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