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-2019-001-15.diff Asterisk 15 http://downloads.asterisk.org/pub/security/AST-2019-001-16.diff Asterisk 16 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Asterisk Project Security Advisories are posted at http://www.asterisk.org/security This document may be superseded by later versions; if so, the latest version will be posted at http://downloads.digium.com/pub/security/AST-2019-001.pdf and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.