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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200407-17">
<title>l2tpd: Buffer overflow</title>
<synopsis>
A buffer overflow in l2tpd could lead to remote code execution. It is not
known whether this bug is exploitable.
</synopsis>
<product type="ebuild">net-dialup/l2tpd</product>
<announced>2004-07-22</announced>
<revised>2004-07-22: 01</revised>
<bug>53009</bug>
<access>remote</access>
<affected>
<package name="net-dialup/l2tpd" auto="yes" arch="*">
<unaffected range="ge">0.69-r2</unaffected>
<vulnerable range="lt">0.69-r2</vulnerable>
</package>
</affected>
<background>
<p>
l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.
</p>
</background>
<description>
<p>
Thomas Walpuski discovered a buffer overflow that may be exploitable by
sending a specially crafted packet. In order to exploit the vulnerable
code, an attacker would need to fake the establishment of an L2TP tunnel.
</p>
</description>
<impact type="high">
<p>
A remote attacker may be able to execute arbitrary code with the privileges
of the user running l2tpd.
</p>
</impact>
<workaround>
<p>
There is no known workaround for this vulnerability.
</p>
</workaround>
<resolution>
<p>
All users are recommended to upgrade to the latest stable version:
</p>
<code>
# emerge sync
# emerge -pv ">=net-l2tpd-0.69-r2"
# emerge ">=net-l2tpd-0.69-r2"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0649">CAN-2004-0649</uri>
<uri link="http://seclists.org/lists/fulldisclosure/2004/Jun/0094.html">Full Disclosure Report</uri>
</references>
<metadata tag="requester">
koon
</metadata>
<metadata tag="submitter">
dmargoli
</metadata>
</glsa>
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