Date: Sun, 18 Nov 2007 00:58:21 +0100
From: Pierre-Yves Rofes <py@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200711-21 ] Bochs: Multiple vulnerabilities
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Gentoo Linux Security Advisory GLSA 200711-21
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http://security.gentoo.org/
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Severity: High
Title: Bochs: Multiple vulnerabilities
Date: November 17, 2007
Bugs: #188148
ID: 200711-21
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Synopsis
========
Multiple vulnerabilities have been discovered in Bochs, possibly
allowing for the execution of arbitrary code or a Denial of Service.
Background
==========
Bochs is a IA-32 (x86) PC emulator written in C++.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/bochs < 2.3 >= 2.3
Description
===========
Tavis Ormandy of the Google Security Team discovered a heap-based
overflow vulnerability in the NE2000 driver (CVE-2007-2893). He also
discovered a divide-by-zero error in the emulated floppy disk
controller (CVE-2007-2894).
Impact
======
A local attacker in the guest operating system could exploit these
issues to execute code outside of the virtual machine, or cause Bochs
to crash.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Bochs users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/bochs-2.3"
References
==========
[ 1 ] CVE-2007-2893
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2893
[ 2 ] CVE-2007-2894
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2894
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200711-21.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 2007 Gentoo Foundation, 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/2.5
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