The PJSIP channel driver in Asterisk Open Source 12.x before 12.1.1,
when qualify_frequency "is enabled on an AOR and the remote SIP server
challenges for authentication of the resulting OPTIONS request,"
allows remote attackers to cause a denial of service (crash) via a
PJSIP endpoint that does not have an associated outgoing request.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
Disclaimer: The entry creation date may reflect when
the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security