Rule

--
Sid
23966

--
Summary:
This event is generated when an attempt is made to exploit a known vulnerability in asterisk.

--
Impact:
Denial of Service.   

--
Detailed Information:
The channel driver in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP INVITE message with an SDP containing one valid and one invalid IP address.

--
Affected Systems:
asterisk asterisk 1.2.14
asterisk asterisk 1.2.15
asterisk asterisk 1.2.16
asterisk asterisk 1.4.1

--
Attack Scenarios:


--
Ease of Attack:
Medium.

--
False Positives:
None known.

--
False Negatives:
None known.

--
Corrective Action:
Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

--
Contributors:
Sourcefire Vulnerability Research Team
This document was generated from data supplied by the National Vulnerability Database. A product of the National Institute of Standards and Technology.
For more information see http://nvd.nist.gov/

--
Additional References:

NIST CVE-2007-1561:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2007-1561
  
--
