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TITLE:
Asterisk Addons "ooh323" Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA30555

VERIFY ADVISORY:
http://secunia.com/advisories/30555/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Asterisk-Addons 1.x
http://secunia.com/product/16150/

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

The problem is that the "ooh323" channel driver extracts memory
addresses from incoming TCP packets and uses them in memory
operations. This can be exploited to crash an affected application by
sending a TCP packet containing invalid memory references.

The vulnerability is reported in 1.2.x versions prior to 1.2.9, and
1.4.x versions prior to 1.4.7.

SOLUTION:
Asterisk Addons 1.2.x:
Update to version 1.2.9.

Asterisk Addons 1.4.x:
Update to version 1.4.7.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tzafrir Cohen.

ORIGINAL ADVISORY:
http://downloads.digium.com/pub/security/AST-2008-009.html

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About:
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