CVE-2008-2543: Asterisk Asterisk-Addons

Medium severity, CVSS 5.0. EPSS: 3.6% chance of exploitation in the next 30 days.

The ooh323 channel driver in Asterisk Addons 1.2.x before 1.2.9 and Asterisk-Addons 1.4.x before 1.4.7 creates a remotely accessible TCP port that is intended solely for localhost communication, and interprets some TCP application-data fields as addresses of memory to free, which allows remote attackers to cause a denial of service (daemon crash) via crafted TCP packets.

Affected products

• Asterisk Asterisk-Addons: version 1.2.0 only; version 1.2.1 only; version 1.2.2 only; version 1.2.3 only; version 1.2.4 only; version 1.2.5 only; …

Published 2008-06-05. Last modified 2026-06-16.