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[ GLSA 200711-21 ] Bochs: Multiple vulnerabilities
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PostPosted: Sun Nov 18, 2007 12:26 am    Post subject: [ GLSA 200711-21 ] Bochs: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Bochs: Multiple vulnerabilities (GLSA 200711-21)
Severity: high
Exploitable: local
Date: November 17, 2007
Bug(s): #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: app-emulation/bochs
Vulnerable: < 2.3
Unaffected: >= 2.3
Architectures: 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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/bochs-2.3"


References

CVE-2007-2893
CVE-2007-2894
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