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

Gentoo Linux Security Advisory GLSA 200607-09
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http://security.gentoo.org/
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Severity: High
Title: Wireshark: Multiple vulnerabilities
Date: July 25, 2006
Bugs: #140856
ID: 200607-09

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Synopsis
========

Wireshark (formerly known as Ethereal) is vulnerable to several
security issues, potentially allowing the execution of arbitrary code
by a remote attacker.

Background
==========

Wireshark, formerly known as Ethereal, is a popular network protocol
analyzer.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/wireshark < 0.99.2 >= 0.99.2
2 net-analyzer/ethereal <= 0.99.0-r1 Vulnerable!
-------------------------------------------------------------------
NOTE: Certain packages are still vulnerable. Users should migrate
to another package if one is available or wait for the
existing packages to be marked stable by their
architecture maintainers.
-------------------------------------------------------------------
2 affected packages on all of their supported architectures.
-------------------------------------------------------------------

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

Wireshark dissectors have been found vulnerable to a large number of
exploits, including off-by-one errors, buffer overflows, format string
overflows and an infinite loop.

Impact
======

Running an affected version of Wireshark or Ethereal could allow for a
remote attacker to execute arbitrary code on the user's computer by
sending specially crafted packets.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Wireshark users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-0.99.2"

All Ethereal users should migrate to Wireshark:

# emerge --sync
# emerge --ask --unmerge net-analyzer/ethereal
# emerge --ask --oneshot --verbose ">=net-analyzer/wireshark-0.99.2"

To keep the [saved] configuration from Ethereal and reuse it with
Wireshark:

# mv ~/.ethereal ~/.wireshark

References
==========

[ 1 ] Wireshark wnpa-sec-2006-01
http://www.wireshark.org/security/wnpa-sec-2006-01.html
[ 2 ] CVE-2006-3627
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3627
[ 3 ] CVE-2006-3628
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3628
[ 4 ] CVE-2006-3629
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3629
[ 5 ] CVE-2006-3630
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3630
[ 6 ] CVE-2006-3631
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3631
[ 7 ] CVE-2006-3632
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3632

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

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

http://security.gentoo.org/glsa/glsa-200607-09.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 2006 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