Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

Bugtraq ID:	35837
Class:	Unknown
CVE:	CVE-2009-2651
Remote:	Yes
Local:	No
Published:	Jul 27 2009 12:00AM
Updated:	Apr 16 2015 06:12PM
Credit:	Marcus Hunger
Vulnerable:	Asterisk Asterisk 1.6.1 0-rc2 Asterisk Asterisk 1.6.1 0-rc1 Asterisk Asterisk 1.6.1
Not Vulnerable:

Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability because it fails to properly handle malformed RTP text frames.

Successful exploits can crash the application, resulting in denial-of-service conditions for legitimate users.

Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

Currently we are not aware of any working exploits. If you feel we are in error or if you are aware of more recent information, please mail us at: [email protected].

Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

Solution:
Updates are available. Please see the references for more information.

Asterisk RTP Text Frames Processing Remote Denial of Service Vulnerability

References:

• Asterisk Homepage (Asterisk)
  
• AST-2009-004: Remote Crash Vulnerability in RTP stack ("Asterisk Security Team" )
  
• AST-2009-004-1.6.1 patch details (Asterisk)
  
• Asterisk Project Security Advisory - AST-2009-004 (Asterisk)