Asterisk Security Team
2014-Mar-10 21:07 UTC
[asterisk-users] AST-2014-003: Remote Crash Vulnerability in PJSIP channel driver
Asterisk Project Security Advisory - AST-2014-003 Product Asterisk Summary Remote Crash Vulnerability in PJSIP channel driver Nature of Advisory Denial of Service Susceptibility Remote Unauthenticated Sessions Severity Moderate Exploits Known No Reported On January 29, 2014 Reported By Joshua Colp <jcolp AT digium DOT com> Posted On March 10, 2014 Last Updated On March 10, 2014 Advisory Contact Joshua Colp <jcolp AT digium DOT com> CVE Name CVE-2014-2288 Description A remotely exploitable crash vulnerability exists in the PJSIP channel driver if the "qualify_frequency" configuration option is enabled on an AOR and the remote SIP server challenges for authentication of the resulting OPTIONS request. The response handling code wrongly assumes that a PJSIP endpoint will always be associated with an outgoing request which is incorrect. Resolution This patch adds a check when handling responses challenging for authentication. If no endpoint is associated with the request no retry with authentication will occur. Affected Versions Product Release Series Asterisk Open Source 12.x All Corrected In Product Release Asterisk Open Source 12.x 12.1.1 Patches SVN URL Revision http://downloads.asterisk.org/pub/security/AST-2014-003-12.diff Asterisk 12 Links https://issues.asterisk.org/jira/browse/ASTERISK-23210 Asterisk Project Security Advisories are posted at http://www.asterisk.org/security This document may be superseded by later versions; if so, the latest version will be posted at http://downloads.digium.com/pub/security/AST-2014-003.pdf and http://downloads.digium.com/pub/security/AST-2014-003.html Revision History Date Editor Revisions Made 03/05/14 Joshua Colp Document Creation Asterisk Project Security Advisory - AST-2014-003 Copyright (c) 2014 Digium, Inc. All Rights Reserved. Permission is hereby granted to distribute and publish this advisory in its original, unaltered form.
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