GLSA 200711-21: Bochs: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	Bochs: Multiple vulnerabilities
Date:	11/17/2007
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	Architecture(s)
app-emulation/bochs	< 2.3	>= 2.3	All supported architectures

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

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 https://bugs.gentoo.org.