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CVE-2007-3765

Status Candidate

Overview

The STUN implementation in Asterisk 1.4.x before 1.4.8, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to cause a denial of service (crash) via a crafted STUN length attribute in a STUN packet sent on an RTP port.

Related Files

ASA-2007-017.txt
Posted Jul 18, 2007
Authored by Joshua Colp | Site asterisk.org

Asterisk Project Security Advisory - The Asterisk STUN implementation in the RTP stack has a remotely exploitable crash vulnerability. A pointer may run past accessible memory if Asterisk receives a specially crafted STUN packet on an active RTP port. The code that parses the incoming STUN packets incorrectly checks that the length indicated in the STUN attribute and the size of the STUN attribute header does not exceed the available data. This will cause the data pointer to run past accessible memory and when accessed will cause a crash.

tags | advisory
advisories | CVE-2007-3765
SHA-256 | bc0c39530df4dd18a6dbdcdc793f1561ba085d70afb011dfde1d4bdcb5f322af
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