Vulnerability CVE-2014-2288
Published: 2014-04-18   Modified: 2014-04-19

Description:
The PJSIP channel driver in Asterisk Open Source 12.x before 12.1.1, when qualify_frequency "is enabled on an AOR and the remote SIP server challenges for authentication of the resulting OPTIONS request," allows remote attackers to cause a denial of service (crash) via a PJSIP endpoint that does not have an associated outgoing request.

Type:

CWE-20

 (Improper Input Validation)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Digium -> Asterisk 

 References:
http://downloads.asterisk.org/pub/security/AST-2014-003-12.diff
https://issues.asterisk.org/jira/browse/ASTERISK-23210
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130426.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-March/130400.html
http://downloads.asterisk.org/pub/security/AST-2014-003.html
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