CVE-2009-2651: Digium Asterisk

Medium severity, CVSS 5.0. EPSS: 2.3% chance of exploitation in the next 30 days.

main/rtp.c in Asterisk Open Source 1.6.1 before 1.6.1.2 allows remote attackers to cause a denial of service (crash) via an RTP text frame without a certain delimiter, which triggers a NULL pointer dereference and the subsequent calculation of an invalid pointer.

Affected products

• Digium Asterisk: version 1.6.1 only

Published 2009-07-30. Last modified 2026-06-16.