From: Secunia Security Advisories (sec-advsecunia.com)
Date: Wed Aug 13 2008 - 13:24:05 CDT

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TITLE:
IPsec-Tools racoon Phase 1 Handler Denial of Service

SECUNIA ADVISORY ID:
SA31478

VERIFY ADVISORY:
http://secunia.com/advisories/31478/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
From remote

SOFTWARE:
IPsec-Tools 0.x
http://secunia.com/product/3352/

DESCRIPTION:
A vulnerability has been reported in IPsec-Tools, which can be
exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to the racoon daemon not properly
deleting orphaned phase 1 handlers when acting as a responder. This
can be exploited to cause high resource consumption via invalid
packets.

The vulnerability is reported in version 0.7.1. Other versions may
also be affected.

SOLUTION:
Fixed in the CVS repository.

PROVIDED AND/OR DISCOVERED BY:
Krzysztof Piotr Oledzk

ORIGINAL ADVISORY:
http://cvsweb.netbsd.org/bsdweb.cgi/src/crypto/dist/ipsec-tools/src/racoon/isakmp.c.diff?r1=1.20.6.11&r2=1.20.6.12&f=h

http://sourceforge.net/mailarchive/forum.php?thread_name=48a0c7a0.qPeWZAE0PY8bDDq%2B%25olel%40ans.pl&forum_name=ipsec-tools-devel

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