CVE-2011-2529
asterisk - multiple issues
EPSS 3.4%
Description
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.6.x before 1.6.2.18.1 and 1.8.x before 1.8.4.3 does not properly handle '\0' characters in SIP packets, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted packet.
How to fix CVE-2011-2529
To remediate CVE-2011-2529, upgrade the affected package to a fixed version below.
- Debian/asterisk—upgrade to 1:1.8.4.3-1 or later
- Debian/asterisk—upgrade to 1:1.6.2.9-2+squeeze3 or later
- —upgrade to 1:1.6.2.9-2+squeeze3 or later
Is CVE-2011-2529 being exploited?
Low — EPSS is 3.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1:1.8.4.3-1
- from 0, < 1:1.6.2.9-2+squeeze3
- from 0, < 1:1.6.2.9-2+squeeze3