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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200710-20">
<title>PDFKit, ImageKits: Buffer overflow</title>
<synopsis>
PDFKit and ImageKits are vulnerable to an integer overflow and a stack
overflow allowing for the user-assisted execution of arbitrary code.
</synopsis>
<product type="ebuild">pdfkit imagekits</product>
<announced>October 18, 2007</announced>
<revised>October 18, 2007: 01</revised>
<bug>188185</bug>
<access>remote</access>
<affected>
<package name="gnustep-libs/pdfkit" auto="yes" arch="*">
<vulnerable range="le">0.9_pre062906</vulnerable>
</package>
<package name="gnustep-libs/imagekits" auto="yes" arch="*">
<vulnerable range="le">0.6</vulnerable>
</package>
</affected>
<background>
<p>
PDFKit is a framework for rendering of PDF content in GNUstep
applications. ImageKits is a collection of frameworks to support
imaging in GNUstep applications.
</p>
</background>
<description>
<p>
Maurycy Prodeus discovered an integer overflow vulnerability possibly
leading to a stack-based buffer overflow in the XPDF code which PDFKit
is based on. ImageKits also contains a copy of PDFKit.
</p>
</description>
<impact type="normal">
<p>
By enticing a user to view a specially crafted PDF file with a viewer
based on ImageKits or PDFKit such as Gentoo's ViewPDF, a remote
attacker could cause an overflow, potentially resulting in the
execution of arbitrary code with the privileges of the user running the
application.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
PDFKit and ImageKits are not maintained upstream, so the packages were
masked in Portage. We recommend that users unmerge PDFKit and
ImageKits:
</p>
<code>
# emerge --unmerge gnustep-libs/pdfkit
# emerge --unmerge gnustep-libs/imagekits</code>
<p>
As an alternative, users should upgrade their systems to use PopplerKit
instead of PDFKit and Vindaloo instead of ViewPDF.
</p>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3387">CVE-2007-3387</uri>
<uri link="/security/en/glsa/glsa-200709-12.xml">GLSA 200709-12</uri>
</references>
<metadata tag="requester" timestamp="Tue, 02 Oct 2007 21:24:54 +0000">
falco
</metadata>
<metadata tag="submitter" timestamp="Sun, 07 Oct 2007 23:31:24 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Tue, 09 Oct 2007 18:28:10 +0000">
p-y
</metadata>
</glsa>