88 lines
2.9 KiB
XML
88 lines
2.9 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200806-09">
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<title>libvorbis: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities in libvorbis might lead to the execution of
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arbitrary code.
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</synopsis>
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<product type="ebuild">libvorbis</product>
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<announced>June 23, 2008</announced>
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<revised>June 23, 2008: 02</revised>
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<bug>222085</bug>
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<access>remote</access>
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<affected>
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<package name="media-libs/libvorbis" auto="yes" arch="*">
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<unaffected range="ge">1.2.1_rc1</unaffected>
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<vulnerable range="lt">1.2.1_rc1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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libvorbis is the reference implementation of the Xiph.org Ogg Vorbis
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audio file format. It is used by many applications for playback of Ogg
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Vorbis files.
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</p>
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</background>
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<description>
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<p>
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Will Drewry of the Google Security Team reported multiple
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vulnerabilities in libvorbis:
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</p>
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<ul>
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<li>
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A zero value for "codebook.dim" is not properly handled, leading to a
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crash, infinite loop or triggering an integer overflow
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(CVE-2008-1419).
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</li>
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<li>
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An integer overflow in "residue partition value" evaluation might lead
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to a heap-based buffer overflow (CVE-2008-1420).
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</li>
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<li>
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An integer overflow in a certain "quantvals" and "quantlist"
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calculation might lead to a heap-based buffer overflow
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(CVE-2008-1423).
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</li>
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</ul>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could exploit these vulnerabilities by enticing a
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user to open a specially crafted Ogg Vorbis file or network stream with
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an application using libvorbis. This might lead to the execution of
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arbitrary code with the privileges of the user playing the file or a
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Denial of Service by a crash or CPU consumption.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All libvorbis users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=media-libs/libvorbis-1.2.1_rc1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1419">CVE-2008-1419</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1420">CVE-2008-1420</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1423">CVE-2008-1423</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 16 Jun 2008 22:45:51 +0000">
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rbu
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 16 Jun 2008 23:30:07 +0000">
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rbu
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 16 Jun 2008 23:30:17 +0000">
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rbu
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</metadata>
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</glsa>
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