<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="200711-21"> <title>Bochs: Multiple vulnerabilities</title> <synopsis> Multiple vulnerabilities have been discovered in Bochs, possibly allowing for the execution of arbitrary code or a Denial of Service. </synopsis> <product type="ebuild">bochs</product> <announced>2007-11-17</announced> <revised count="01">2007-11-17</revised> <bug>188148</bug> <access>local</access> <affected> <package name="app-emulation/bochs" auto="yes" arch="*"> <unaffected range="ge">2.3</unaffected> <vulnerable range="lt">2.3</vulnerable> </package> </affected> <background> <p> Bochs is a IA-32 (x86) PC emulator written in C++. </p> </background> <description> <p> 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). </p> </description> <impact type="high"> <p> 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. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All Bochs users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/bochs-2.3"</code> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2893">CVE-2007-2893</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2894">CVE-2007-2894</uri> </references> <metadata tag="requester" timestamp="2007-09-29T14:10:20Z"> p-y </metadata> <metadata tag="bugReady" timestamp="2007-09-29T14:11:15Z"> p-y </metadata> <metadata tag="submitter" timestamp="2007-11-01T20:22:24Z"> p-y </metadata> </glsa>