CVE-2015-3008: Digium Asterisk

Medium severity, CVSS 4.3. EPSS: 46% chance of exploitation in the next 30 days.

Asterisk Open Source 1.8 before 1.8.32.3, 11.x before 11.17.1, 12.x before 12.8.2, and 13.x before 13.3.2 and Certified Asterisk 1.8.28 before 1.8.28-cert5, 11.6 before 11.6-cert11, and 13.1 before 13.1-cert2, when registering a SIP TLS device, does not properly handle a null byte in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

Affected products

• Digium Asterisk: version 1.8.0 only; version 1.8.1 only; version 1.8.1.1 only; version 1.8.1.2 only; version 1.8.2 only; version 1.8.2.1 only; …
• Digium Certified Asterisk: version 1.8.0.0 only; version 1.8.1.0 only; version 1.8.2.0 only; version 1.8.3.0 only; version 1.8.4.0 only; version 1.8.5.0 only; …

Published 2015-04-10. Last modified 2026-06-17.