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Message-Id: <E1eKslw-0002nI-NB@mail.digium.com>
Date: Fri, 01 Dec 2017 15:23:00 -0600
From: "Asterisk Security Team" <security@...erisk.org>
To: fulldisclosure@...lists.org
Subject: [FD] AST-2017-013: DOS Vulnerability in Asterisk chan_skinny
Asterisk Project Security Advisory - AST-2017-013
Product Asterisk
Summary DOS Vulnerability in Asterisk chan_skinny
Nature of Advisory Denial of Service
Susceptibility Remote Unauthenticated Sessions
Severity Moderate
Exploits Known Yes
Reported On November 30, 2017
Reported By Juan Sacco
Posted On December 1, 2017
Last Updated On December 1, 2017
Advisory Contact gjoseph AT digium DOT com
CVE Name
Description If the chan_skinny (AKA SCCP protocol) channel driver is
flooded with certain requests it can cause the asterisk
process to use excessive amounts of virtual memory
eventually causing asterisk to stop processing requests of
any kind.
Resolution The chan_skinny driver has been updated to release memory
allocations in a correct manner thereby preventing any
possiblity of exhaustion.
Affected Versions
Product Release Series
Asterisk Open Source 13.x All Versions
Asterisk Open Source 14.x All Versions
Asterisk Open Source 15.x All Versions
Certified Asterisk 13.13 All Versions
Corrected In
Product Release
Asterisk Open Source 13.18.3, 14.7.3, 15.1.3
Certified Asterisk 13.13-cert8
Patches
SVN URL Revision
http://downloads.asterisk.org/pub/security/AST-2017-013-13.diff Asterisk
13
http://downloads.asterisk.org/pub/security/AST-2017-013-14.diff Asterisk
14
http://downloads.asterisk.org/pub/security/AST-2017-013-15.diff Asterisk
15
http://downloads.asterisk.org/pub/security/AST-2017-013-13.13.diff Certified
Asterisk
13.13
Links https://issues.asterisk.org/jira/browse/ASTERISK-27452
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This document may be superseded by later versions; if so, the latest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-2017-013.pdf and
http://downloads.digium.com/pub/security/AST-2017-013.html
Revision History
Date Editor Revisions Made
November 30, 2017 George Joseph Initial Revision
Asterisk Project Security Advisory - AST-2017-013
Copyright © 2017 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.
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