The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.17.x through 1.8.22.x, 1.8.23.x before 18.104.22.168, and 11.x before 11.5.1 and Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an ACK with SDP to a previously terminated channel. NOTE: some of these details are obtained from third party information.
Publish Date : 2013-09-09 Last Update Date : 2013-09-11
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify
a vulnerability or a missing patch. Check out the OVAL definitions
if you want to learn what you should do to verify a vulnerability.