CVE-2014-4048: Digium Asterisk

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

The PJSIP Channel Driver in Asterisk Open Source before 12.3.1 allows remote attackers to cause a denial of service (deadlock) by terminating a subscription request before it is complete, which triggers a SIP transaction timeout.

Affected products

• Digium Asterisk: up to and including 12.3.0; 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.