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<?xml version="1.0" encoding="UTF-8"?>
<glsa id="201203-23">
<title>libzip: Multiple vulnerabilities</title>
<synopsis>Multiple vulnerabilities have been found in libzip, the worst of
which might allow execution of arbitrary code.
<product type="ebuild">libzip</product>
<announced>March 29, 2012</announced>
<revised>March 29, 2012: 1</revised>
<package name="dev-libs/libzip" auto="yes" arch="*">
<unaffected range="ge">0.10.1</unaffected>
<vulnerable range="lt">0.10.1</vulnerable>
<p>libzip is a library for manipulating zip archives.</p>
<p>Two vulnerabilities have been found in the "_zip_readcdir()" function in
zip_open.c of libzip:
<li>An incorrect loop construct, which could cause a heap-based buffer
overflow (CVE-2012-1162).
<li>An integer overflow, which may not restrict operations within the
memory buffer (CVE-2012-1163).
<impact type="normal">
<p>A remote attacker could entice a user to open a specially crafted ZIP
file, possibly resulting in execution of arbitrary code with the
privileges of the process, a Denial of Service condition, or information
<p>There is no known workaround at this time.</p>
<p>All libzip users should upgrade to the latest version:</p>
# emerge --sync
# emerge --ask --oneshot --verbose "&gt;=dev-libs/libzip-0.10.1"
<uri link="">CVE-2012-1162</uri>
<uri link="">CVE-2012-1163</uri>
<metadata timestamp="Fri, 23 Mar 2012 11:20:26 +0000" tag="requester">ackle</metadata>
<metadata timestamp="Thu, 29 Mar 2012 11:18:55 +0000" tag="submitter">ackle</metadata>