70 lines
2.3 KiB
XML
70 lines
2.3 KiB
XML
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<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200608-12">
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<title>x11vnc: Authentication bypass in included LibVNCServer code</title>
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<synopsis>
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VNC servers created with x11vnc accept insecure protocol types, even when
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the server does not offer it, resulting in the possibility of unauthorized
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access to the server.
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</synopsis>
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<product type="ebuild">x11vnc</product>
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<announced>August 07, 2006</announced>
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<revised>August 07, 2006: 01</revised>
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<bug>142559</bug>
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<access>remote</access>
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<affected>
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<package name="x11-misc/x11vnc" auto="yes" arch="*">
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<unaffected range="ge">0.8.1</unaffected>
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<vulnerable range="lt">0.8.1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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x11vnc provides VNC servers for X displays.
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</p>
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</background>
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<description>
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<p>
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x11vnc includes vulnerable LibVNCServer code, which fails to properly
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validate protocol types effectively letting users decide what protocol
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to use, such as "Type 1 - None" (GLSA-200608-05). x11vnc will accept
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this security type, even if it is not offered by the server.
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</p>
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</description>
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<impact type="high">
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<p>
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An attacker could exploit this vulnerability to gain unauthorized
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access with the privileges of the user running the VNC server.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All x11vnc users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=x11-misc/x11vnc-0.8.1"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2450">CVE-2006-2450</uri>
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<uri link="http://www.gentoo.org/security/en/glsa/glsa-200608-05.xml">GLSA-200608-05</uri>
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</references>
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<metadata tag="requester" timestamp="Sat, 05 Aug 2006 07:18:47 +0000">
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jaervosz
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</metadata>
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<metadata tag="bugReady" timestamp="Sat, 05 Aug 2006 16:44:29 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Sat, 05 Aug 2006 17:17:11 +0000">
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falco
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</metadata>
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</glsa>
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