CVE-2014-4045: Digium Asterisk

Medium severity, CVSS 4.3. EPSS: 2.8% chance of exploitation in the next 30 days.

The Publish/Subscribe Framework in the PJSIP channel driver in Asterisk Open Source 12.x before 12.3.1, when sub_min_expiry is set to zero, allows remote attackers to cause a denial of service (assertion failure and crash) via an unsubscribe request when not subscribed to the device.

Affected products

• Digium Asterisk: version 12.0.0 only; version 12.1.0 only; version 12.1.1 only; version 12.2.0 only; version 12.3.0 only

Published 2014-06-17. Last modified 2026-06-17.