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Bug 16503 - tcpdump DOS security vulnerability CAN-2003-0108
Summary: tcpdump DOS security vulnerability CAN-2003-0108
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: High critical (vote)
Assignee: Gentoo Security
URL: http://www.idefense.com/advisory/02.2...
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2003-02-27 16:59 UTC by Bug Hunter
Modified: 2003-03-05 05:20 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments

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Description Bug Hunter 2003-02-27 16:59:48 UTC
From the advisory:
=======================================================

A vulnerability exists in the parsing of ISAKMP packets (UDP port 500)
that allows an attacker to force TCPDUMP into an infinite loop upon
receipt of a specially crafted packet. 

Solution:

This vulnerability was already closed by Guy Harris during routine
development; users of the CVS version downloaded since September 6, 2002
(revision 1.34 of print-isakmp.c) are not vulerable.  The new 3.7.2
tcpdump release includes this and a couple of additional security
fixes; the 0.7.2 libpcap release includes new functionality but no
security fixes.

The following packages are available:

http://www.tcpdump.org/release/tcpdump-3.7.2.tar.gz
http://www.tcpdump.org/release/libpcap-0.7.2.tar.gz


Reproducible: Always
Steps to Reproduce:
Comment 1 Daniel Ahlberg (RETIRED) gentoo-dev 2003-03-05 05:20:47 UTC
glsa sent