Asterisk Uninitalized Variable SIP Channel Driver Denial of Service Vulnerability

Bugtraq ID:	50177
Class:	Design Error
CVE:	CVE-2011-4063
Remote:	Yes
Local:	No
Published:	Oct 17 2011 12:00AM
Updated:	Apr 13 2015 08:26PM
Credit:	Ehsan Foroughi
Vulnerable:	Gentoo Linux Asterisk Asterisk 1.8.4 2 Asterisk Asterisk 1.8.4 1 Asterisk Asterisk 1.8.2 4 Asterisk Asterisk 1.8.1 Asterisk Asterisk 1.8 Asterisk Asterisk 10.0 Asterisk Asterisk 1.8.4.4 Asterisk Asterisk 1.8.4.3 Asterisk Asterisk 1.8.3.3 Asterisk Asterisk 1.8.3.1 Asterisk Asterisk 1.8.2.1 Asterisk Asterisk 1.8.1.2 Asterisk Asterisk 1.8
Not Vulnerable:	Asterisk Asterisk 1.8.7.1

Asterisk Uninitalized Variable SIP Channel Driver Denial of Service Vulnerability

Asterisk is prone to a denial-of-service vulnerability.

An attacker can exploit this issue to cause the application to crash, denying service to legitimate users.

Asterisk Uninitalized Variable SIP Channel Driver 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 Uninitalized Variable SIP Channel Driver Denial of Service Vulnerability

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


Asterisk Asterisk 1.8

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.2.1

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.1.2

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.3.3

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.4.4

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 10.0

• Asterisk AST-2011-012-10.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-10.diff

Asterisk Asterisk 1.8.3.1

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.4.3

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.1

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.2 4

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.4 2

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Asterisk 1.8.4 1

• Asterisk AST-2011-012-1.8.diff
  http://downloads.asterisk.org/pub/security/AST-2011-012-1.8.diff

Asterisk Uninitalized Variable SIP Channel Driver Denial of Service Vulnerability

References:

• Asterisk Homepage (Asterisk)
  
• AST-2011-012: Remote crash vulnerability in SIP channel driver ([email protected])