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Message-Id: <E1krqCg-0003Cq-76@mail.digium.com>
Date: Tue, 22 Dec 2020 16:32:26 -0600
From: "Asterisk Security Team" <security@...erisk.org>
To: fulldisclosure@...lists.org
Subject: [FD] AST-2020-004: Remote crash in res_pjsip_diversion
Asterisk Project Security Advisory - AST-2020-004
Product Asterisk
Summary Remote crash in res_pjsip_diversion
Nature of Advisory Denial of service
Susceptibility Remote authenticated sessions
Severity Moderate
Exploits Known No
Reported On December 02, 2020
Reported By Mikhail Ivanov
Posted On December 22, 2020
Last Updated On
Advisory Contact kharwell AT sangoma DOT com
CVE Name
Description A crash can occur in Asterisk when a SIP 181 response
is received that has a Diversion header, which
contains a tel-uri.
Modules Affected res_pjsip_diversion.c
Resolution Asterisk now ensures that if it receives a SIP 181 response
with a Diversion header that contains a tel-uri a crash does
not occur.
Affected Versions
Product Release Series
Asterisk Open Source 13.X 13.38.0
Asterisk Open Source 16.X 16.15.0
Asterisk Open Source 17.X 17.9.0
Asterisk Open Source 18.X 18.1.0
Corrected In
Product Release
Asterisk Open Source 13.38.1, 16.15.1, 17.9.1, 18.1.1
Patches
SVN URL Revision
The associated patches for AST-2020-003 also Asterisk 13, 16, 17, 18
fix this issue.
Links https://issues.asterisk.org/jira/browse/ASTERISK-29191
https://downloads.asterisk.org/pub/security/AST-2020-003.html
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This document may be superseded by later versions; if so, the latest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-2020-004.pdf and
http://downloads.digium.com/pub/security/AST-2020-004.html
Revision History
Date Editor Revisions Made
December 22, 2020 Kevin Harwell Initial revision
Asterisk Project Security Advisory - AST-2020-004
Copyright �� 2020 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.
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