Bochs: Multiple vulnerabilities — GLSA 200711-21

Multiple vulnerabilities have been discovered in Bochs, possibly allowing for the execution of arbitrary code or a Denial of Service.

Affected Packages

app-emulation/bochs on all architectures
Affected versions < 2.3
Unaffected versions >= 2.3

Background

Bochs is a IA-32 (x86) PC emulator written in C++.

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

Release Date
November 17, 2007

Latest Revision
November 17, 2007: 01

Severity
high

Exploitable
local

Bugzilla entries