CVE-2013-5641
asterisk - several
EPSS 4.1%
Description
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 1.8.23.1, 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.
How to fix CVE-2013-5641
To remediate CVE-2013-5641, upgrade the affected package to a fixed version below.
- Debian/asterisk—upgrade to 1:11.5.1~dfsg-1 or later
- —upgrade to 1:1.6.2.9-2+squeeze11 or later
Is CVE-2013-5641 being exploited?
Low — EPSS is 4.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1:11.5.1~dfsg-1
- from 0, < 1:1.6.2.9-2+squeeze11