<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> <glsa id="201009-07"> <title>libxml2: Denial of Service</title> <synopsis> Multiple Denial of Services vulnerabilities were found in libxml2. </synopsis> <product type="ebuild">libxml2</product> <announced>2010-09-21</announced> <revised count="01">2010-09-21</revised> <bug>280617</bug> <access>remote</access> <affected> <package name="dev-libs/libxml2" auto="yes" arch="*"> <unaffected range="ge">2.7.3-r2</unaffected> <vulnerable range="lt">2.7.3-r2</vulnerable> </package> </affected> <background> <p> libxml2 is a library to manipulate XML files. </p> </background> <description> <p> The following vulnerabilities were reported after a test with the Codenomicon XML fuzzing framework: </p> <ul> <li> Two use-after-free vulnerabilities are possible when parsing a XML file with Notation or Enumeration attribute types (CVE-2009-2416). </li> <li> A stack consumption vulnerability can be triggered via a large depth of element declarations in a DTD, related to a function recursion (CVE-2009-2414). </li> </ul> </description> <impact type="normal"> <p> A remote attacker could entice a user or automated system to open a specially crafted XML document with an application using libxml2 resulting in a Denial of Service condition. </p> </impact> <workaround> <p> There is no known workaround at this time. </p> </workaround> <resolution> <p> All libxml2 users should upgrade to the latest version: </p> <code> # emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/libxml2-2.7.3-r2"</code> <p> NOTE: This is a legacy GLSA. Updates for all affected architectures are available since August 30, 2009. It is likely that your system is already no longer affected by this issue. </p> </resolution> <references> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2414">CVE-2009-2414</uri> <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2416">CVE-2009-2416</uri> </references> <metadata tag="requester" timestamp="2009-08-31T02:15:14Z"> a3li </metadata> <metadata tag="submitter" timestamp="2010-04-11T13:13:48Z"> craig </metadata> <metadata tag="bugReady" timestamp="2010-05-30T18:03:32Z"> vorlon </metadata> </glsa>