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AST-2012-003: Stack Buffer Overflow in HTTP Manager
From: "Asterisk Security Team" <security () asterisk org>
Date: Thu, 15 Mar 2012 17:05:31 -0500

               Asterisk Project Security Advisory - AST-2012-003

          Product         Asterisk                                            
          Summary         Stack Buffer Overflow in HTTP Manager               
     Nature of Advisory   Exploitable Stack Buffer Overflow                   
       Susceptibility     Remote Unauthenticated Sessions                     
          Severity        Critical                                            
       Exploits Known     No                                                  
        Reported On       03/15/2012                                          
        Reported By       Russell Bryant                                      
         Posted On        03/15/2012                                          
      Last Updated On     March 15, 2012                                      
      Advisory Contact    Matt Jordan < mjordan AT digium DOT com >           
          CVE Name        

    Description  An attacker attempting to connect to an HTTP session of the  
                 Asterisk Manager Interface can send an arbitrarily long      
                 string value for HTTP Digest Authentication. This causes a   
                 stack buffer overflow, with the possibility of remote code   
                 injection.                                                   

    Resolution  Upgrade to one of the versions of Asterisk listed in the      
                "Corrected In" section, or apply a patch specified in the     
                "Patches" section.                                            

                               Affected Versions
                Product              Release Series  
         Asterisk Open Source            1.8.x       All versions             
         Asterisk Open Source             10.x       All versions             

                                  Corrected In 
                     Product                              Release             
              Asterisk Open Source                       1.8.10.1             
              Asterisk Open Source                        10.2.1              

                                    Patches                          
                                SVN URL                              Revision 
   http://downloads.asterisk.org/pub/security/AST-2012-003-1.8.diff  v1.8     
   http://downloads.asterisk.org/pub/security/AST-2012-003-10.diff   v10      

       Links     https://issues.asterisk.org/jira/browse/ASTERISK-19542       

    Asterisk Project Security Advisories are posted at                        
    http://www.asterisk.org/security                                          
                                                                              
    This document may be superseded by later versions; if so, the latest      
    version will be posted at http://downloads.digium.com/pub/security/.pdf   
    and http://downloads.digium.com/pub/security/.html                        

                                Revision History
          Date                  Editor                 Revisions Made         
    03-15-2012         Matt Jordan               Initial release              

               Asterisk Project Security Advisory - AST-2012-003
              Copyright (c) 2012 Digium, Inc. All Rights Reserved.
  Permission is hereby granted to distribute and publish this advisory in its
                           original, unaltered form.


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