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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200903-19">
<title>Xerces-C++: Denial of Service</title>
An error in Xerces-C++ allows for a Denial of Service via malicious XML
schema files.
<product type="ebuild">xerces-c</product>
<announced>March 09, 2009</announced>
<revised>March 09, 2009: 01</revised>
<package name="dev-libs/xerces-c" auto="yes" arch="*">
<unaffected range="ge">3.0.0-r1</unaffected>
<vulnerable range="lt">3.0.0-r1</vulnerable>
Xerces-C++ is a validating XML parser written in a portable subset of
Frank Rast reported that the XML parser in Xerces-C++ does not
correctly handle an XML schema definition with a large maxOccurs value,
which triggers excessive memory consumption during the validation of an
XML file.
<impact type="normal">
A remote attacker could entice a user or automated system to validate
an XML file using a specially crafted XML schema file, leading to a
Denial of Service (stack consumption and crash).
There is no known workaround at this time.
All Xerces-C++ users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=dev-libs/xerces-c-3.0.0-r1&quot;</code>
<uri link="">CVE-2008-4482</uri>
<metadata tag="requester" timestamp="Sun, 11 Jan 2009 17:39:39 +0000">
<metadata tag="submitter" timestamp="Thu, 12 Feb 2009 18:13:38 +0000">
<metadata tag="bugReady" timestamp="Thu, 12 Feb 2009 18:13:55 +0000">