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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="200711-08">
+ <title>libpng: Multiple Denials of Service</title>
+ <synopsis>
+ Several vulnerabilities in libpng may allow a remote attacker to crash
+ applications that handle untrusted images.
+ </synopsis>
+ <product type="ebuild">libpng</product>
+ <announced>November 07, 2007</announced>
+ <revised>November 07, 2007: 01</revised>
+ <bug>195261</bug>
+ <access>remote</access>
+ <affected>
+ <package name="media-libs/libpng" auto="yes" arch="*">
+ <unaffected range="ge">1.2.21-r3</unaffected>
+ <vulnerable range="lt">1.2.21-r3</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ libpng is a free ANSI C library used to process and manipulate PNG
+ images.
+ </p>
+ </background>
+ <description>
+ <p>
+ An off-by-one error when handling ICC profile chunks in the
+ png_set_iCCP() function was discovered (CVE-2007-5266). George Cook and
+ Jeff Phillips reported several errors in pngrtran.c, the use of logical
+ instead of a bitwise functions and incorrect comparisons
+ (CVE-2007-5268). Tavis Ormandy reported out-of-bounds read errors in
+ several PNG chunk handling functions (CVE-2007-5269).
+ </p>
+ </description>
+ <impact type="normal">
+ <p>
+ A remote attacker could craft an image that when processed or viewed by
+ an application using libpng would cause the application to terminate
+ abnormally.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ There is no known workaround at this time.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All libpng users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge --sync
+ # emerge --ask --oneshot --verbose &quot;&gt;=media-libs/libpng-1.2.21-r3&quot;</code>
+ </resolution>
+ <references>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5266">CVE-2007-5266</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5268">CVE-2007-5268</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5269">CVE-2007-5269</uri>
+ </references>
+ <metadata tag="requester" timestamp="Sat, 20 Oct 2007 09:57:33 +0000">
+ p-y
+ </metadata>
+ <metadata tag="bugReady" timestamp="Sat, 20 Oct 2007 09:57:41 +0000">
+ p-y
+ </metadata>
+ <metadata tag="submitter" timestamp="Fri, 26 Oct 2007 00:26:03 +0000">
+ rbu
+ </metadata>
+</glsa>