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Date: Fri, 04 Mar 2022 20:16:54 +0000
From: "Asterisk Security Team" <security@...erisk.org>
To: fulldisclosure@...lists.org
Subject: [FD] AST-2022-005: pjproject: undefined behavior after freeing a
	dialog set

               Asterisk Project Security Advisory - AST-2022-005

         Product        Asterisk                                              
         Summary        pjproject: undefined behavior after freeing a dialog  
                        set                                                   
    Nature of Advisory  Denial of service                                     
      Susceptibility    Remote unauthenticated sessions                       
         Severity       Major                                                 
      Exploits Known    Yes                                                   
       Reported On      March 3, 2022                                         
       Reported By      Sauw Ming                                             
        Posted On       March 4, 2022                                         
     Last Updated On    March 3, 2022                                         
     Advisory Contact   kharwell AT sangoma DOT com                           
         CVE Name       CVE-2022-23608                                        

      Description     When acting as a UAC, and when placing an outgoing      
                      call to a target that then forks Asterisk may           
                      experience undefined behavior (crashes, hangs, etc���)    
                      after a dialog set is prematurely freed.                
    Modules Affected  bundled pjproject                                       

    Resolution  If you use ���with-pjproject-bundled��� then upgrade to, or       
                install one of, the versions of Asterisk listed below.        
                Otherwise install the appropriate version of pjproject that   
                contains the patch.                                           

                               Affected Versions
                Product              Release Series  
         Asterisk Open Source             16.x       All versions             
         Asterisk Open Source             18.x       All versions             
         Asterisk Open Source             19.x       All versions             
          Certified Asterisk              16.x       All versions             

                                  Corrected In
                 Product                              Release                 
           Asterisk Open Source                16.24.1,18.10.1,19.2.1         
            Certified Asterisk                      16.8-cert13               

                                    Patches                         
                              Patch URL                             Revision  
   https://downloads.digium.com/pub/security/AST-2022-005-16.diff   Asterisk  
                                                                    16        
   https://downloads.digium.com/pub/security/AST-2022-005-18.diff   Asterisk  
                                                                    18        
   https://downloads.digium.com/pub/security/AST-2022-005-19.diff   Asterisk  
                                                                    19        
   https://downloads.digium.com/pub/security/AST-2022-005-16.8.diff Certified 
                                                                    Asterisk  
                                                                    16.8      

Links https://issues.asterisk.org/jira/browse/ASTERISK-29945                     
                                                                                 
      https://downloads.asterisk.org/pub/security/AST-2022-005.html              
                                                                                 
      https://github.com/pjsip/pjproject/security/advisories/GHSA-ffff-m5fm-qm62 

    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                                                 
    https://downloads.digium.com/pub/security/AST-2022-005.pdf and            
    https://downloads.digium.com/pub/security/AST-2022-005.html               

                                Revision History
          Date                  Editor                 Revisions Made         
    March 3, 2022      Kevin Harwell             Initial revision             

               Asterisk Project Security Advisory - AST-2022-005
               Copyright �� 2022 Digium, Inc. All Rights Reserved.
  Permission is hereby granted to distribute and publish this advisory in its
                           original, unaltered form.


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