<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201101-03"> <title>libvpx: User-assisted execution of arbitrary code</title> <synopsis> Timothy B. Terriberry discovered that libvpx contains an integer overflow vulnerability in the processing of video streams that may allow user-assisted execution of arbitrary code. </synopsis> <product type="ebuild">libvpx</product> <announced>2011-01-15</announced> <revised count="01">2011-01-15</revised> <bug>345559</bug> <access>remote</access> <affected> <package name="media-libs/libvpx" auto="yes" arch="*"> <unaffected range="ge">0.9.5</unaffected> <vulnerable range="lt">0.9.5</vulnerable> </package> </affected> <background> <p> libvpx is the VP8 codec SDK used to encode and decode video streams, typically within a WebM format media file. </p> </background> <description> <p> libvpx is vulnerable to an integer overflow vulnerability when processing crafted VP8 video streams. </p> </description> <impact type="normal"> <p> A remote attacker could entice a user to open a specially crafted media file, possibly resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All libvpx users should upgrade to the latest stable version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libvpx-0.9.5"</code> <p> Packages which depend on this library may need to be recompiled. Tools such as revdep-rebuild may assist in identifying some of these packages. </p> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-4203">CVE-2010-4203</uri> </references> <metadata tag="requester" timestamp="2010-12-13T01:15:02Z"> underling </metadata> <metadata tag="submitter" timestamp="2011-01-05T05:26:31Z"> underling </metadata> <metadata tag="bugReady" timestamp="2011-01-07T16:42:00Z"> underling </metadata> </glsa>