CVE-2006-5445: Digium Asterisk

High severity, CVSS 7.8. EPSS: 3.6% chance of exploitation in the next 30 days.

Unspecified vulnerability in the SIP channel driver (channels/chan_sip.c) in Asterisk 1.2.x before 1.2.13 and 1.4.x before 1.4.0-beta3 allows remote attackers to cause a denial of service (resource consumption) via unspecified vectors that result in the creation of "a real pvt structure" that uses more resources than necessary.

Affected products

• Digium Asterisk: version 1.2.0_beta1 only; version 1.2.0_beta2 only; version 1.2.6 only; version 1.2.7 only; version 1.2.8 only; version 1.2.9 only; …

Published 2006-10-23. Last modified 2026-06-16.