A new security update has been released for Gentoo Linux - Wireshark: Multiple vulnerabilities. Here the announcement:

Gentoo Linux Security Advisory GLSA 200708-12
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http://security.gentoo.org/
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Severity: Normal
Title: Wireshark: Multiple vulnerabilities
Date: August 16, 2007
Bugs: #183520
ID: 200708-12

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Synopsis
========

Multiple vulnerabilities have been discovered in Wireshark, allowing
for the remote execution of arbitrary code and a Denial of Service.

Background
==========

Wireshark is a network protocol analyzer with a graphical front-end.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/wireshark < 0.99.6 >= 0.99.6

Description
===========

Wireshark doesn't properly handle chunked encoding in HTTP responses
(CVE-2007-3389), iSeries capture files (CVE-2007-3390), certain types
of DCP ETSI packets (CVE-2007-3391), and SSL or MMS packets
(CVE-2007-3392). An off-by-one error has been discovered in the
DHCP/BOOTP dissector when handling DHCP-over-DOCSIS packets
(CVE-2007-3393).

Impact
======

A remote attacker could send specially crafted packets on a network
being monitored with Wireshark, possibly resulting in the execution of
arbitrary code with the privileges of the user running Wireshark which
might be the root user, or a Denial of Service.

Workaround
==========

In order to prevent root compromise, take network captures with tcpdump
and analyze them running Wireshark as a least privileged user.

Resolution
==========

All Wireshark users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-0.99.6"

References
==========

[ 1 ] CVE-2007-3389
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3389
[ 2 ] CVE-2007-3390
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3390
[ 3 ] CVE-2007-3391
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3391
[ 4 ] CVE-2007-3392
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3392
[ 5 ] CVE-2007-3393
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3393

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200708-12.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5