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[asterisk-announce] AST-2008-001: Crash from transfer using

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Posted: Wed Jan 02, 2008 10:17 pm Post subject: [asterisk-announce] AST-2008-001: Crash from transfer using

Asterisk Project Security Advisory - AST-2008-001 +------------------------------------------------------------------------+ \| Product \| Asterisk \| \|---------------------+--------------------------------------------------\| \| Summary \| Remote Crash Vulnerability in SIP channel driver \| \|---------------------+--------------------------------------------------\| \| Nature of Advisory \| Denial of Service \| \|---------------------+--------------------------------------------------\| \| Susceptibility \| Remote Unauthenticated Sessions \| \|---------------------+--------------------------------------------------\| \| Severity \| Critical \| \|---------------------+--------------------------------------------------\| \| Exploits Known \| No \| \|---------------------+--------------------------------------------------\| \| Reported On \| December 26, 2007 \| \|---------------------+--------------------------------------------------\| \| Reported By \| Grey VoIP (bugs.digium.com user greyvoip) \| \|---------------------+--------------------------------------------------\| \| Posted On \| January 2, 2008 \| \|---------------------+--------------------------------------------------\| \| Last Updated On \| January 2, 2008 \| \|---------------------+--------------------------------------------------\| \| Advisory Contact \| Joshua Colp <jcolp@digium.com> \| \|---------------------+--------------------------------------------------\| \| CVE Name \| \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Description \| The handling of the BYE with Also transfer method was \| \| \| broken during the development of Asterisk 1.4. If a \| \| \| transfer attempt is made using this method the system \| \| \| will immediately crash upon handling the BYE message due \| \| \| to trying to copy data into a NULL pointer. It is \| \| \| important to note that a dialog must have already been \| \| \| established and up in order for this to happen. \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Resolution \| A fix has been added so that the BYE with Also transfer \| \| \| method now properly allocates and uses the transfer data \| \| \| structure. It will no longer try to copy data into a NULL \| \| \| pointer and will operate properly. \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Affected Versions \| \|------------------------------------------------------------------------\| \| Product \| Release \| \| \| \| Series \| \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Open Source \| 1.0.x \| Unaffected \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Open Source \| 1.2.x \| Unaffected \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Open Source \| 1.4.x \| All versions prior to \| \| \| \| 1.4.17 \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Business Edition \| A.x.x \| Unaffected \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Business Edition \| B.x.x \| Unaffected \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Business Edition \| C.x.x \| All versions prior to \| \| \| \| C.1.0-beta8 \| \|----------------------------+-------------+-----------------------------\| \| AsteriskNOW \| pre-release \| All versions prior to beta7 \| \|----------------------------+-------------+-----------------------------\| \| Asterisk Appliance \| SVN \| All versions prior to \| \| Developer Kit \| \| Asterisk 1.4 revision 95946 \| \|----------------------------+-------------+-----------------------------\| \| s800i (Asterisk Appliance) \| 1.0.x \| All versions prior to \| \| \| \| 1.0.3.4 \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Corrected In \| \|------------------------------------------------------------------------\| \| Product \| Release \| \|---------------+--------------------------------------------------------\| \| Asterisk Open \| 1.4.17, available from \| \| Source \| http://downloads.digium.com/pub/telephony/asterisk \| \|---------------+--------------------------------------------------------\| \| Asterisk \| C.1.0 \| \| Business \| \| \| Edition \| \| \|---------------+--------------------------------------------------------\| \| AsteriskNOW \| Beta7, available from http://www.asterisknow.org/. \| \| \| \| \| \| Beta5 and Beta6 users can update using the system \| \| \| update feature in the appliance control panel. \| \|---------------+--------------------------------------------------------\| \| Asterisk \| Asterisk 1.4 revision 95946. Available by performing \| \| Appliance \| an svn update of the AADK tree. \| \| Developer Kit \| \| \|---------------+--------------------------------------------------------\| \| s800i \| 1.0.3.4 \| \| (Asterisk \| \| \| Appliance) \| \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Links \| http://bugs.digium.com/view.php?id=11637 \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| 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-2008-001.pdf and \| \| http://downloads.digium.com/pub/security/AST-2008-001.html \| +------------------------------------------------------------------------+ +------------------------------------------------------------------------+ \| Revision History \| \|------------------------------------------------------------------------\| \| Date \| Editor \| Revisions Made \| \|------------------+--------------------+--------------------------------\| \| 2008-01-02 \| Joshua Colp \| Initial Release \| +------------------------------------------------------------------------+ Asterisk Project Security Advisory - AST-2008-001 Copyright (c) 2007 Digium, Inc. All Rights Reserved. Permission is hereby granted to distribute and publish this advisory in its original, unaltered form. _______________________________________________ --Bandwidth and Colocation Provided by http://www.api-digital.com-- asterisk-announce mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-announce

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