CVE-2011-2216
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact…
Does this matter?
Lower severity and a low EPSS score (4.62%). Track it; it rarely justifies an emergency change on its own.
Description
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.2 does not initialize certain strings, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a malformed Contact header.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 4.62% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Affected
- digium/asterisk
- Source
- cve@mitre.org
EPSS 4.6% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://downloads.digium.com/pub/security/AST-2011-007.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062658.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062013.html
- http://osvdb.org/72752
- http://secunia.com/advisories/44828
- http://securitytracker.com/id?1025598
- http://www.securityfocus.com/archive/1/518236/100/0/threaded
- http://www.securityfocus.com/bid/48096
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67812
- http://downloads.digium.com/pub/security/AST-2011-007.htmlVendor Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2011-July/062658.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062013.html
- http://osvdb.org/72752
- http://secunia.com/advisories/44828
- http://securitytracker.com/id?1025598
- http://www.securityfocus.com/archive/1/518236/100/0/threaded
- http://www.securityfocus.com/bid/48096
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67812
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.