ESB-2019.0637 - [Win][UNIX/Linux] Asterisk: Denial of service - Remote with user interaction 2019-03-01

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0637
        AST-2019-001: Asterisk Remote crash vulnerability with SDP
                            protocol violation
                               1 March 2019

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Asterisk
Publisher:         Asterisk
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-7251  

Original Bulletin: 
   http://downloads.asterisk.org/pub/security/AST-2019-001.html

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Asterisk Project Security Advisory - AST-2019-001

       Product         Asterisk
 
      Summary         Remote crash vulnerability with SDP protocol violation

 Nature of Advisory    Denial Of Service

   Susceptibility      Remote Authenticated Sessions

      Severity         Low

   Exploits Known      No

     Reported On       January 24, 2019

     Reported By       Sotiris Ganouris

      Posted On        November 14,2018

   Last Updated On

  Advisory Contact     gjoseph AT digium DOT com

      CVE Name         CVE-2019-7251

     Description       When Asterisk makes an outgoing call, a very specific SDP protocol violation by
                       the remote party can cause Asterisk to crash.

     Resolution        Upgrade Asterisk to a fixed version.

                               Affected Versions

              Product                  Release
                                       Series
       Asterisk Open Source             15.x      All releases
       Asterisk Open Source             16.x      All releases


                                 Corrected In

                     Product                                             Release
               Asterisk Open Source                                       15.7.2
               Asterisk Open Source                                       16.2.1


                                    Patches
                     SVN URL                        Revision
http://downloads.asterisk.org/pub/security/AST-201  Asterisk 15
9 - 0 0 1 -1 5 .diff
http://downloads.asterisk.org/pub/security/AST-201  Asterisk 16
9 - 0 0 1 -1 6 .diff

        Links          https://issues.asterisk.org/jira/browse/ASTERISK-28260

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/ AST-2019-001 .pdf
and http://downloads.digium.com/pub/security/ AST-2019-001 .html

                               Revision History

       Date          Editor                     Revisions Made
January 31, 2019     George Joseph              Initial revision

               Asterisk Project Security Advisory - AST-2019-001
              Copyright (C) 2018 Digium, Inc. All Rights Reserved.
  Permission is hereby granted to distribute and publish this advisory in its
                           original, unaltered form.

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