Scientific Linux Security Update : tigervnc on SL7.x x86_64

This script is Copyright (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the way TigerVNC handled screen sizes. A malicious VNC server
could use this flaw to cause a client to crash or, potentially,
execute arbitrary code on the client. (CVE-2014-8240)

A NULL pointer dereference flaw was found in TigerVNC's XRegion. A
malicious VNC server could use this flaw to cause a client to crash.
(CVE-2014-8241)

The tigervnc packages have been upgraded to upstream version 1.3.1,
which provides a number of bug fixes and enhancements over the
previous version.

This update also fixes the following bug :

- The position of the mouse cursor in the VNC session was
not correctly communicated to the VNC viewer, resulting
in cursor misplacement. The method of displaying the
remote cursor has been changed, and cursor movements on
the VNC server are now accurately reflected on the VNC
client.

See also :

http://www.nessus.org/u?9452ecd5

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 87576 ()

Bugtraq ID:

CVE ID: CVE-2014-8240
CVE-2014-8241

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