| <?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>August 04, 2006</announced> |
| <revised>August 04, 2006: 01</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 ">=net-libs/libvncserver-0.8.2"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2450">CVE-2006-2450</uri> |
| </references> |
| <metadata tag="requester" timestamp="Sat, 29 Jul 2006 16:47:24 +0000"> |
| vorlon078 |
| </metadata> |
| <metadata tag="bugReady" timestamp="Sat, 29 Jul 2006 16:50:23 +0000"> |
| vorlon078 |
| </metadata> |
| <metadata tag="submitter" timestamp="Mon, 31 Jul 2006 01:51:07 +0000"> |
| hlieberman |
| </metadata> |
| </glsa> |