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

Gentoo Linux Security Advisory GLSA 200809-17
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http://security.gentoo.org/=

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Severity: Normal
Title: Wireshark: Multiple Denials of Service
Date: September 25, 2008
Bugs: #236515
ID: 200809-17

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Synopsis
========

Multiple Denial of Service vulnerabilities have been discovered in
Wireshark.

Background
==========

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

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

-------------------------------------------------------------------=

Package / Vulnerable / Unaffected
-------------------------------------------------------------------=

1 net-analyzer/wireshark < 1.0.3 >= 1.0.=
3

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

The following vulnerabilities were reported:

* Multiple buffer overflows in the NCP dissector (CVE-2008-3146).

* Infinite loop in the NCP dissector (CVE-2008-3932).

* Invalid read in the tvb_uncompress() function when processing zlib
compressed data (CVE-2008-3933).

* Unspecified error when processing Textronix .rf5 files
(CVE-2008-3934).

Impact
======

A remote attacker could exploit these vulnerabilities by sending
specially crafted packets on a network being monitored by Wireshark or
by enticing a user to read a malformed packet trace file, causing a
Denial of Service.

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-1.0.=
3"

References
==========

[ 1 ] CVE-2008-3146
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3146
[ 2 ] CVE-2008-3932
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3932
[ 3 ] CVE-2008-3933
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3933
[ 4 ] CVE-2008-3934
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3934

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

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

http://security.gentoo.org/glsa/glsa-200809-17.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 2008 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