Torrey Searle

Name of the Vulnerable Software and Affected Versions: Asterisk versions prior to 13.38.0 Asterisk versions 14.x through 16.x before 16.15.0 Asterisk versions 17.x before 17.9.0 Asterisk versions 18.x before 18.1.0 Description: An issue was discovered in res pjsip diversion.c. A crash can occur when a SIP message is received with a "History-Info" header that contains a `tel-uri`, or when a SIP 181 response is received that contains a `tel-uri` in the `Diversion` header. Recommendations: For versions prior to 13.38.0, update to version 13.38.0 or later. For versions 14.x through 16.x before 16.15.0, update to version 16.15.0 or later. For versions 17.x before 17.9.0, update to version 17.9.0 or later. For versions 18.x before 18.1.0, update to version 18.1.0 or later.

**Name of the Vulnerable Software and Affected Versions** Asterisk Open Source versions 1.8.x through 11.21.1, 12.x, and 13.x through 13.7.1 Certified Asterisk versions 1.8.28, 11.6 through 11.6-cert12, and 13.1 through 13.1-cert3 **Description** The issue is related to errors in pointer handling, which can be exploited by remote authenticated users to cause a denial of service. This is achieved through a zero-length error correcting redundancy packet for a lost UDPTL FAX packet, resulting in an uninitialized pointer dereference and crash. **Recommendations** For Asterisk Open Source versions 1.8.x through 11.21.1, update to version 11.21.1 or later. For Asterisk Open Source versions 12.x, update to version 13.7.1 or later. For Asterisk Open Source versions 13.x through 13.7.1, update to version 13.7.1 or later. For Certified Asterisk versions 1.8.28, update to version 11.6-cert12 or later. For Certified Asterisk versions 11.6 through 11.6-cert12, update to version 11.6-cert12 or later. For Certified Asterisk versions 13.1 through 13.1-cert3, update to version 13.1-cert3 or later.