CVE-2011-2665 json
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 servic…
published 2011-07-06 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2648
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.0%
- EPSS 4.0% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- asterisk Debian 14 1:1.8.4.3-1
debian advisories DEBIAN-CVE-2011-2665
Exploit prediction
3.97% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
downloads.asterisk.org
/pub/security/AST-2011-009-1.8.diff
patch
-
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.html
vendor-advisory
-
secunia.com
/advisories/45048
third-party-advisory, vendor-advisory
-
secunia.com
/advisories/45239
third-party-advisory
-
secunia.com
/advisories/45201
third-party-advisory
Sources
- CVE List CVE-2011-2665
- NVD CVE-2011-2665
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.