From: Secunia Security Advisories (sec-advsecunia.com)
Date: Fri Feb 13 2004 - 07:05:45 CST

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TITLE:
PWLib H.323 Protocol Implementation Vulnerabilities

SECUNIA ADVISORY ID:
SA10869

VERIFY ADVISORY:
http://secunia.com/advisories/10869/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
From remote

SOFTWARE:
PWLib 1.x

DESCRIPTION:
The OpenH323 Project has acknowledged some vulnerabilities in PWLib,
which can be exploited by malicious people to cause a DoS (Denial of
Service).

The vulnerabilities are caused due to various errors in the
processing of H.225 messages over TCP, which can be exploited by
sending specially crafted messages to an affected system.

Successful exploitation may crash a vulnerable applications or cause
it to consume 100% CPU resources.

SOLUTION:
Update to version 1.6.1.

ORIGINAL ADVISORY:
http://www.postincrement.com/openh323/nissc_vulnerabilty.html

OTHER REFERENCES:
CERT advisory:
http://www.cert.org/advisories/CA-2004-01.html

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