From: Robert Buchholz <rbu@gentoo.org.>
To: gentoo-announce@gentoo.org
Subject: [ GLSA 200903-17 ] Real VNC: User-assisted execution of arbitrary code
Date: Mon, 9 Mar 2009 14:58:19 +0100
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Gentoo Linux Security Advisory GLSA 200903-17
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http://security.gentoo.org/
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Severity: Normal
Title: Real VNC: User-assisted execution of arbitrary code
Date: March 09, 2009
Bugs: #255225
ID: 200903-17
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Synopsis
========
The Real VNC client is vulnerable to execution of arbitrary code when
connecting to a malicious server.
Background
==========
Real VNC is a remote desktop viewer display system.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-misc/vnc < 4.1.3 >= 4.1.3
Description
===========
An unspecified vulnerability has been discovered int the
CMsgReader::readRect() function in the VNC Viewer component, related to
the encoding type of RFB protocol data.
Impact
======
A remote attacker could entice a user to connect to a malicious VNC
server, or leverage Man-in-the-Middle attacks, to cause the execution
of arbitrary code with the privileges of the user running the VNC
viewer.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Real VNC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/vnc-4.1.3"
References
==========
[ 1 ] CVE-2008-4770
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4770
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200903-17.xml
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.
License
=======
Copyright 2009 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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