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[SM-Security] tcpdump: Denial of Service vulnerability

From: Thomas Houssin <Thomas.Houssin AT gmail.com>
To: sm-security AT lists.ibiblio.org
Subject: [SM-Security] tcpdump: Denial of Service vulnerability
Date: Fri, 17 Jun 2005 14:46:38 +0200

Synopsis
========
A flaw in the decoding of network packets in tcpdump allows remote
attackers to cause a denial of service (infinite loop)

Background
==========
tcpdump is CLI packet sniffer network debugging tool

Description
===========
CAN-2005-1267
(From Gentoo: ) While working on the recent tcpdump issues
(CAN-2005-1278, CAN-2005-1279, and CAN-2005-1280) Simon L. Nielsen from
FreeBSD Security Team discovered that there is another similar infinite
loop DoS vulnerability in the BGP handling code.

Affected packages
=================
tcpdump 1.8.3, present in devel, test, stable-rc and stable, is affected
; this is now fixed in all grimoires.

Resolution
==========
All tcpdump users should upgrade to the latest available version:
#scribe update
#cast -c tcpdump

--
Thomas Houssin

Security Team Lead : Source Mage GNU/Linux http://www.sourcemage.org
Key fingerprint = 3CB8 3FC4 840D B272 E623 BCB8 54DB F4E3 4240 4C36
http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x42404C36

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[SM-Security] tcpdump: Denial of Service vulnerability, Thomas Houssin, 06/17/2005