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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+<glsa id="200608-05">
+ <title>LibVNCServer: Authentication bypass</title>
+ <synopsis>
+ VNC servers created with LibVNCServer accept insecure protocol types, even
+ when the server does not offer it, resulting in unauthorized access to the
+ server.
+ </synopsis>
+ <product type="ebuild">libvncserver</product>
+ <announced>2006-08-04</announced>
+ <revised count="01">2006-08-04</revised>
+ <bug>136916</bug>
+ <access>remote</access>
+ <affected>
+ <package name="net-libs/libvncserver" auto="yes" arch="*">
+ <unaffected range="ge">0.8.2</unaffected>
+ <vulnerable range="lt">0.8.2</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ LibVNCServer is a GPL'ed library for creating VNC servers.
+ </p>
+ </background>
+ <description>
+ <p>
+ LibVNCServer fails to properly validate protocol types effectively
+ letting users decide what protocol to use, such as "Type 1 - None".
+ LibVNCServer will accept this security type, even if it is not offered
+ by the server.
+ </p>
+ </description>
+ <impact type="high">
+ <p>
+ An attacker could use this vulnerability to gain unauthorized access
+ with the privileges of the user running the VNC server.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ There is no known workaround at this time.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All LibVNCServer users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge --sync
+ # emerge --ask --oneshot --verbose "&gt;=net-libs/libvncserver-0.8.2"</code>
+ </resolution>
+ <references>
+ <uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2450">CVE-2006-2450</uri>
+ </references>
+ <metadata tag="requester" timestamp="2006-07-29T16:47:24Z">
+ vorlon078
+ </metadata>
+ <metadata tag="bugReady" timestamp="2006-07-29T16:50:23Z">
+ vorlon078
+ </metadata>
+ <metadata tag="submitter" timestamp="2006-07-31T01:51:07Z">
+ hlieberman
+ </metadata>
+</glsa>