Date: Thu, 10 Jun 2004 19:56:25 +0000
From: Kurt Lieber <klieber@gentoo.org>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200406-06 ] CVS: additional DoS and arbitrary code execution vulnerabilities
Cc: bugtraq@securityfocus.com, full-disclosure@lists.netsys.com,
security-alerts@linuxsecurity.com
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Gentoo Linux Security Advisory GLSA 200406-06
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http://security.gentoo.org/
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Severity: High
Title: CVS: additional DoS and arbitrary code execution
vulnerabilities
Date: June 10, 2004
Bugs: #53408
ID: 200406-06
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Synopsis
========
Several serious new vulnerabilities have been found in CVS, which may
allow an attacker to remotely compromise a CVS server.
Background
==========
CVS (Concurrent Versions System) is an open-source network-transparent
version control system. It contains both a client utility and a server.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-util/cvs <= 1.11.16-r1 >= 1.11.17
Description
===========
A team audit of the CVS source code performed by Stefan Esser and
Sebastian Krahmer resulted in the discovery of several remotely
exploitable vulnerabilities including:
* no-null-termination of "Entry" lines
* error_prog_name "double-free()"
* Argument integer overflow
* serve_notify() out of bounds writes
Impact
======
An attacker could use these vulnerabilities to cause a Denial of
Service or execute arbitrary code with the permissions of the user
running cvs.
Workaround
==========
There is no known workaround at this time. All users are advised to
upgrade to the latest available version of CVS.
Resolution
==========
All CVS users should upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=dev-util/cvs-1.11.17"
# emerge ">=dev-util/cvs-1.11.17"
References
==========
[ 1 ] E-matters Advisory 09/2004
http://security.e-matters.de/advisories/092004.html
[ 2 ] CAN-2004-0414
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0414
[ 3 ] CAN-2004-0416
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0416
[ 4 ] CAN-2004-0417
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0417
[ 5 ] CAN-2004-0418
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0418
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200406-06.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2004 Gentoo Technologies, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/1.0
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