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<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200702-12">
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<title>CHMlib: User-assisted remote execution of arbitrary code</title>
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<synopsis>
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A memory corruption vulnerability in CHMlib could lead to the remote
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execution of arbitrary code.
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</synopsis>
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<product type="ebuild">CHMlib</product>
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<announced>2007-02-27</announced>
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<revised>2008-05-20: 02</revised>
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<bug>163989</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/chmlib" auto="yes" arch="*">
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<unaffected range="ge">0.39</unaffected>
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<vulnerable range="lt">0.39</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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CHMlib is a library for the MS CHM (Compressed HTML) file format plus
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extracting and HTTP server utils.
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</p>
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</background>
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<description>
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<p>
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When certain CHM files that contain tables and objects stored in pages
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are parsed by CHMlib, an unsanitized value is passed to the alloca()
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function resulting in a shift of the stack pointer to arbitrary memory
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locations.
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</p>
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</description>
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<impact type="normal">
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<p>
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An attacker could entice a user to open a specially crafted CHM file,
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resulting in the execution of arbitrary code with the permissions of
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the user viewing the file.
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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 CHMlib 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 ">=dev-libs/chmlib-0.39"</code>
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</resolution>
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<references>
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<uri link="http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=468">Original Advisory</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0619">CVE-2007-0619</uri>
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</references>
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<metadata tag="requester" timestamp="2007-02-10T21:22:08Z">
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falco
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</metadata>
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<metadata tag="bugReady" timestamp="2007-02-10T23:53:10Z">
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falco
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</metadata>
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<metadata tag="submitter" timestamp="2007-02-13T11:35:38Z">
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daxomatic
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</metadata>
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</glsa>
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