FreeBSD : asterisk -- Crash on ACK from unknown endpoint (7fda7920-7603-11e6-b362-001999f8d30b)
High Nessus Plugin ID 93389
SynopsisThe remote FreeBSD host is missing a security-related update.
DescriptionThe Asterisk project reports :
Asterisk can be crashed remotely by sending an ACK to it from an endpoint username that Asterisk does not recognize. Most SIP request types result in an 'artificial' endpoint being looked up, but ACKs bypass this lookup. The resulting NULL pointer results in a crash when attempting to determine if ACLs should be applied.
This issue was introduced in the Asterisk 13.10 release and only affects that release.
This issue only affects users using the PJSIP stack with Asterisk.
Those users that use chan_sip are unaffected.
SolutionUpdate the affected package.