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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200710-07">
<title>Tk: Buffer overflow</title>
<synopsis>
A buffer overflow vulnerability has been discovered in Tk.
</synopsis>
<product type="ebuild">tk</product>
<announced>2007-10-07</announced>
<revised count="01">2007-10-07</revised>
<bug>192539</bug>
<access>remote</access>
<affected>
<package name="dev-lang/tk" auto="yes" arch="*">
<unaffected range="ge">8.4.15-r1</unaffected>
<vulnerable range="lt">8.4.15-r1</vulnerable>
</package>
</affected>
<background>
<p>
Tk is a toolkit for creating graphical user interfaces.
</p>
</background>
<description>
<p>
Reinhard Max discovered a boundary error in Tk when processing an
interlaced GIF with two frames where the second is smaller than the
first one.
</p>
</description>
<impact type="normal">
<p>
A remote attacker could entice a user to open a specially crafted GIF
image with a Tk-based software, possibly 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>
All Tk users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-lang/tk-8.4.15-r1"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4851">CVE-2007-4851</uri>
</references>
<metadata tag="requester" timestamp="2007-09-25T09:49:33Z">
p-y
</metadata>
<metadata tag="bugReady" timestamp="2007-09-25T09:49:45Z">
p-y
</metadata>
<metadata tag="submitter" timestamp="2007-10-02T20:07:14Z">
p-y
</metadata>
</glsa>
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