Digium · Asterisk · CVE-2017-17664
**Name of the Vulnerable Software and Affected Versions**
Asterisk Open Source versions 13.x before 13.18.4
Asterisk Open Source versions 14.x before 14.7.4
Asterisk Open Source versions 15.x before 15.1.4
Certified Asterisk versions before 13.13-cert9
**Description**
A Remote Crash issue was discovered in certain versions of Asterisk. The issue is caused by certain compound RTCP packets that can cause a crash in the RTCP Stack.
**Recommendations**
For Asterisk Open Source versions 13.x before 13.18.4, update to version 13.18.4 or later.
For Asterisk Open Source versions 14.x before 14.7.4, update to version 14.7.4 or later.
For Asterisk Open Source versions 15.x before 15.1.4, update to version 15.1.4 or later.
For Certified Asterisk versions before 13.13-cert9, update to version 13.13-cert9 or later.