full-disclosure - [ GLSA 200711-21 ] Bochs: Multiple vulnerabilities

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <473F801D.4050507@gentoo.org>
Date: Sun, 18 Nov 2007 00:58:21 +0100
From: Pierre-Yves Rofes <py@...too.org>
To: gentoo-announce@...too.org
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200711-21 ] Bochs: Multiple vulnerabilities

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200711-21
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: High
     Title: Bochs: Multiple vulnerabilities
      Date: November 17, 2007
      Bugs: #188148
        ID: 200711-21

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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@...too.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
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFHP4AduhJ+ozIKI5gRAoGsAJ9eTHVtsnVWsAII4m9eSnmobPGyLQCfcQqf
ktlcEcQo/3p6PbW4BrKZlxI=
=lCTl
-----END PGP SIGNATURE-----

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/