Asterisk IAX2 Channel Driver Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1016236
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SecurityTracker URL: http://securitytracker.com/id?1016236
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CVE Reference: CVE-2006-2898
(Links to External Site)
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Updated: Jun 12 2006
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Original Entry Date: Jun 7 2006
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Impact: Denial of service via network
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Fix Available: Yes
Vendor Confirmed: Yes
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Version(s): 1.2 prior to 1.2.9, 1.0 prior to 1.0.11
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Description: A vulnerability was reported in Asterisk. A remote user can cause denial of service conditions.
A remote authenticated user can send specially crafted data to cause the target Asterisk server to crash or suffer from denial of service conditions.
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Impact: A remote user can cause denial of service conditions on the target system.
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Solution: The vendor has issued fixed versions (1.0.11, 1.2.9), available at:
http://www.asterisk.org/download
http://ftp.digium.com/pub/telephony/asterisk/releases
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Vendor URL: www.asterisk.org/ (Links to External Site)
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Cause: Exception handling error
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Underlying OS: Linux (Any), UNIX (Any)
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Reported By: "Matt Riddell (IT)" <matt.riddell@sineapps.com>
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Message History:
None.
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Source Message Contents
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Date: Tue, 06 Jun 2006 10:51:32 +0200
From: "Matt Riddell (IT)" <matt.riddell@sineapps.com>
Subject: Asterisk 1.2.9 and Asterisk 1.0.11 Released - Security Fix
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The Asterisk Development Team today released Asterisk 1.2.9 and Asterisk
1.0.11 to address a security vulnerability in the IAX2 channel driver
(chan_iax2). The vulnerability affects all users with IAX2 clients that
might be compromised or used by a malicious user, and can lead to denial
of service attacks and random Asterisk server crashes via a relatively
trivial exploit.
All users are urged to upgrade as soon as they can practically do so, or
ensure that they don't expose IAX2 services to the public if it is not
necessary.
The release files are available in the usual place (ftp.digium.com), as
both tarballs and patch files relative to the last release. In addition,
both the tarballs and the patch files have been signed using GPG keys of
the release maintainers, so that you can ensure their authenticity.
Thank you for your support of Asterisk!
--
Cheers,
Matt Riddell
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