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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200703-19">
<title>LTSP: Authentication bypass in included LibVNCServer code</title>
LTSP includes a version of libVNCServer that is vulnerable to an
authentication bypass.
<product type="ebuild">ltsp</product>
<announced>March 18, 2007</announced>
<revised>March 18, 2007: 01</revised>
<package name="net-misc/ltsp" auto="yes" arch="*">
<unaffected range="ge">4.2-r1</unaffected>
<vulnerable range="lt">4.2-r1</vulnerable>
The Linux Terminal Server Project adds thin-client support to Linux
The LTSP server includes vulnerable LibVNCServer code, which fails to
properly validate protocol types effectively letting users decide what
protocol to use, such as "Type 1 - None" (GLSA-200608-05). The LTSP VNC
server will accept this security type, even if it is not offered by the
<impact type="high">
An attacker could exploit this vulnerability to gain unauthorized
access with the privileges of the user running the VNC server.
There is no known workaround at this time.
All LTSP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/ltsp-4.2-r1&quot;</code>
<uri link="">CVE-2006-2450</uri>
<uri link="/security/en/glsa/glsa-200608-05.xml">GLSA 200608-05</uri>
<metadata tag="requester" timestamp="Sat, 10 Feb 2007 19:11:34 +0000">
<metadata tag="bugReady" timestamp="Sat, 10 Feb 2007 23:53:14 +0000">
<metadata tag="submitter" timestamp="Tue, 27 Feb 2007 02:25:26 +0000">