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AUSCERT External Security Bulletin Redistribution
ESB-2018.3565
Asterisk: Remote crash vulnerability DNS SRV and NAPTR lookups
15 November 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Asterisk
Publisher: Asterisk
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-19278
Original Bulletin:
http://downloads.asterisk.org/pub/security/AST-2018-010.html
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Asterisk Project Security Advisory - AST-2018-010
Product Asterisk
Summary Remote crash vulnerability DNS SRV and NAPTR lookups
Nature of Advisory Denial Of Service
Susceptibility Remote Unauthenticated Sessions
Severity Moderate
Exploits Known No
Reported On October 23, 2018
Reported By Jan Hoffmann
Posted On November 14,2018
Last Updated On November 14, 2018
Advisory Contact gjoseph AT digium DOT com
CVE Name CVE-2018-19278
Description There is a buffer overflow vulnerability in dns_srv and dns_naptr
functions of Asterisk that allows an attacker to crash Asterisk via a
specially crafted DNS SRV or NAPTR response. The attacker's request
causes Asterisk to segfault and 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 15.6.2
Asterisk Open Source 16.0.1
Patches
http://downloads.asterisk.org/pub/security/AST-2018-010-15.diff
Asterisk 15
http://downloads.asterisk.org/pub/security/AST-2018-010-16.diff
Asterisk 16
Links https://issues.asterisk.org/jira/browse/ASTERISK-28127
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This document may be superseded by later versions; if so, the latest version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-2018-010.pdf and
http://downloads.digium.com/pub/security/AST-2018-010.html
Revision History
Date Editor Revisions Made
October 25, 2018 George Joseph Initial revision
November 14, 2018 George Joseph Updated with CVE
Asterisk Project Security Advisory - AST-2018-010
Copyright 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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