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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200407-17">
<title>l2tpd: Buffer overflow</title>
A buffer overflow in l2tpd could lead to remote code execution. It is not
known whether this bug is exploitable.
<product type="ebuild">net-dialup/l2tpd</product>
<announced>July 22, 2004</announced>
<revised>July 22, 2004: 01</revised>
<package name="net-dialup/l2tpd" auto="yes" arch="*">
<unaffected range="ge">0.69-r2</unaffected>
<vulnerable range="lt">0.69-r2</vulnerable>
l2tpd is a GPL implentation of the Layer 2 Tunneling Protocol.
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.
<impact type="high">
A remote attacker may be able to execute arbitrary code with the privileges
of the user running l2tpd.
There is no known workaround for this vulnerability.
All users are recommended to upgrade to the latest stable version:
# emerge sync
# emerge -pv ">=net-l2tpd-0.69-r2"
# emerge ">=net-l2tpd-0.69-r2"</code>
<uri link="">CAN-2004-0649</uri>
<uri link="">Full Disclosure Report</uri>
<metadata tag="requester">
<metadata tag="submitter">