01 March 2019
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0637 AST-2019-001: Asterisk Remote crash vulnerability with SDP protocol violation 1 March 2019 =========================================================================== 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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Asterisk Project Security Advisories are posted at http://www.asterisk.org/ security This document may be superseded by later versions; if so, the latest version will be posted at http://downloads.digium.com/pub/security/ AST-2019-001 .pdf and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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to firstname.lastname@example.org and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXHinSmaOgq3Tt24GAQgIGRAAlyRr5VQAND8mvTQHbErJf8MP4XDJnFSz rUud6SaVCLVxlLJWIHYtT7EkNwteZBwprccc383GRrwKacIjQX2TSTPDxXAoIU+z fHjKdDaUJROxcK8cje7Lg+WlyJoVt/LFGG2IM4MZPnSYRTX0wiuqDEKuMQCsyYoy UpYFZziI+XTwsK4H9nfJNlamAzn8x6bp7SC2LsW/zWawLXgyb6vkq4dgmBjHBIyK iRA3wLdnYccMtI/41LNGldH7fcjDZChZIJYyPscK4jbhh/uKglRyPnC/W02vvqxV BxxercwevSnvNfiC3It5iPE6aBdv0Y0sog+sw9waYol12DKGMKDO3BpCWDx452yd ewMoPQtKTFrVZIxWI0N1qOlh28c5miUWSNZQwsFcbPwmnMjCrMpExaX7GsEcGFJQ MBoStQM3781yEI/psNO4ndUPnzh9CEdobl5ze6SVTvWyVqTxjdhmnZje1Ex+k94k HzadmiECvXfUG/L2ygMgRAUB5+nWV/aevDBgafAj8L0Re/jXP6fFrn8lIa0BqIF2 SxDo8LElXXTVRnMJVQl+jgIm2cd2UHR9xvZ9R6gHpjVAPcTFsaz78ovLru4C91nz MDpKzI9R5aQWjK/KFd5Xc06xgALCtFFGNvm9UfXyMWidwzQQKVplRqOIXqOQD7vZ motx96pO2pQ= =LB7i -----END PGP SIGNATURE-----