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authorAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
committerAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
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+<?xml version="1.0" encoding="utf-8"?>
+<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
+<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+
+<glsa id="200609-07">
+ <title>LibXfont, monolithic X.org: Multiple integer overflows</title>
+ <synopsis>
+ Some buffer overflows were discovered in the CID font parser, potentially
+ resulting in the execution of arbitrary code with elevated privileges.
+ </synopsis>
+ <product type="ebuild">libxfont</product>
+ <announced>September 13, 2006</announced>
+ <revised>September 13, 2006: 01</revised>
+ <bug>145513</bug>
+ <access>local and remote</access>
+ <affected>
+ <package name="x11-libs/libXfont" auto="yes" arch="*">
+ <unaffected range="ge">1.2.1</unaffected>
+ <vulnerable range="lt">1.2.1</vulnerable>
+ </package>
+ <package name="x11-base/xorg-x11" auto="yes" arch="*">
+ <unaffected range="ge">7.0</unaffected>
+ <vulnerable range="lt">7.0</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ libXfont is the X.Org Xfont library, some parts are based on the
+ FreeType code base.
+ </p>
+ </background>
+ <description>
+ <p>
+ Several integer overflows have been found in the CID font parser.
+ </p>
+ </description>
+ <impact type="high">
+ <p>
+ A remote attacker could exploit this vulnerability by enticing a user
+ to load a malicious font file resulting in the execution of arbitrary
+ code with the permissions of the user running the X server which
+ typically is the root user. A local user could exploit this
+ vulnerability to gain elevated privileges.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ Disable CID-encoded Type 1 fonts by removing the "type1" module and
+ replacing it with the "freetype" module in xorg.conf.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All libXfont users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge --sync
+ # emerge --ask --oneshot --verbose &quot;&gt;=x11-libs/libXfont-1.2.1&quot;</code>
+ <p>
+ All monolithic X.org users are advised to migrate to modular X.org.
+ </p>
+ </resolution>
+ <references>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2006-3739">CVE-2006-3739</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2006-3740">CVE-2006-3740</uri>
+ </references>
+ <metadata tag="requester" timestamp="Tue, 12 Sep 2006 16:30:32 +0000">
+ frilled
+ </metadata>
+ <metadata tag="submitter" timestamp="Tue, 12 Sep 2006 18:16:51 +0000">
+ jaervosz
+ </metadata>
+ <metadata tag="bugReady" timestamp="Wed, 13 Sep 2006 08:07:36 +0000">
+ jaervosz
+ </metadata>
+</glsa>