CVE-2011-2665
EPSS 2.3%
Description
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a SIP packet with a Contact header that lacks a < (less than) character.
How to fix CVE-2011-2665
To remediate CVE-2011-2665, upgrade the affected package to a fixed version below.
- Debian/asterisk—upgrade to 1:1.8.4.3-1 or later
Is CVE-2011-2665 being exploited?
Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:1.8.4.3-1