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This document may be superseded by later versions; if so, the latest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.

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