Date: Fri, 04 Jun 2004 21:30:59 +0200
From: Thierry Carrez <koon@gentoo.org>
To: gentoo-announce@lists.gentoo.org
Subject: [ GLSA 200406-01 ] Ethereal: Multiple security problems
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200406-01
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http://security.gentoo.org/
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Severity: High
Title: Ethereal: Multiple security problems
Date: June 04, 2004
Bugs: #51022
ID: 200406-01
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Synopsis
========
Multiple vulnerabilities including one buffer overflow exist in
Ethereal, which may allow an attacker to run arbitrary code or crash
the program.
Background
==========
Ethereal is a feature rich network protocol analyzer.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-analyzer/ethereal <= 0.10.3 >= 0.10.4
Description
===========
There are multiple vulnerabilities in versions of Ethereal earlier than
0.10.4, including:
* A buffer overflow in the MMSE dissector.
* Under specific conditions a SIP packet could make Ethereal crash.
* The AIM dissector could throw an assertion, causing Ethereal to
crash.
* The SPNEGO dissector could dereference a null pointer, causing a
crash.
Impact
======
An attacker could use these vulnerabilities to crash Ethereal or even
execute arbitrary code with the permissions of the user running
Ethereal, which could be the root user.
Workaround
==========
For a temporary workaround you can disable all affected protocol
dissectors by selecting Analyze->Enabled Protocols... and deselecting
them from the list. However, it is strongly recommended to upgrade to
the latest stable release.
Resolution
==========
All Ethereal users should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-analyzer/ethereal-0.10.4"
# emerge ">=net-analyzer/ethereal-0.10.4"
References
==========
[ 1 ] Ethereal enpa-sa-00014
http://www.ethereal.com/appnotes/enpa-sa-00014.html
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200406-01.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 2004 Gentoo Technologies, 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/1.0
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