Vulnerability in Digium Asterisk
CVE-2011-2665
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.040 (90.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Digium Asterisk — versions 1.8.0, 1.8.1, 1.8.1.1
References
- downloads.asterisk.org/pub/security/AST-2011-009.html (Vendor Advisory)
- secunia.com/advisories/45239 (third-party-advisory)
- www.debian.org/security/2011/dsa-2276 (vendor-advisory)
- lists.fedoraproject.org/pipermail/package-announce/2011-July/062628.html (vendor-advisory)
- downloads.asterisk.org/pub/security/AST-2011-009-1.8.diff (Patch)
- secunia.com/advisories/45048 (Vendor Advisory, third-party-advisory)
- secunia.com/advisories/45201 (third-party-advisory)