Vulnerability CVE-2014-2287
Published: 2014-04-18   Modified: 2014-04-19

Description:
channels/chan_sip.c in Asterisk Open Source 1.8.x before 1.8.26.1, 11.8.x before 11.8.1, and 12.1.x before 12.1.1, and Certified Asterisk 1.8.15 before 1.8.15-cert5 and 11.6 before 11.6-cert2, when chan_sip has a certain configuration, allows remote authenticated users to cause a denial of service (channel and file descriptor consumption) via an INVITE request with a (1) Session-Expires or (2) Min-SE header with a malformed or invalid value.

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:M/Au:S/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.5/10
2.9/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Fedoraproject -> Fedora 
Digium -> Asterisk 
Digium -> Certified asterisk 

 References:
http://downloads.asterisk.org/pub/security/AST-2014-002.html
http://downloads.asterisk.org/pub/security/AST-2014-002-1.8.diff
https://issues.asterisk.org/jira/browse/ASTERISK-23373
http://www.securityfocus.com/bid/66094
http://www.mandriva.com/security/advisories?name=MDVSA-2014:078
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130426.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130400.html
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