CVE-2012-2948: Asterisk Certified Asterisk

Medium severity, CVSS 4.0. EPSS: 2.1% chance of exploitation in the next 30 days.

chan_skinny.c in the Skinny (aka SCCP) channel driver in Certified Asterisk 1.8.11-cert before 1.8.11-cert2 and Asterisk Open Source 1.8.x before 1.8.12.1 and 10.x before 10.4.1 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) by closing a connection in off-hook mode.

Affected products

• Asterisk Certified Asterisk: version 1.8.11 only
• Asterisk Open Source: version 1.8.0 only; version 1.8.1 only; version 1.8.2 only; version 1.8.3 only; version 1.8.5 only; version 1.8.5.0 only; …
• Sangoma Asterisk: up to and including 1.8.12.0; up to and including 10.4.0

Published 2012-06-02. Last modified 2026-06-16.