Scientific Linux Security Update : tigervnc on SL6.x i386/x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

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

Description :

Virtual Network Computing (VNC) is a remote display system which
allows you to view a computer's desktop environment not only on the
machine where it is running, but from anywhere on the Internet and
from a wide variety of machine architectures. TigerVNC is a suite of
VNC servers and clients.

It was discovered that vncviewer could prompt for and send
authentication credentials to a remote server without first properly
validating the server's X.509 certificate. As vncviewer did not
indicate that the certificate was bad or missing, a man-in-the-middle
attacker could use this flaw to trick a vncviewer client into
connecting to a spoofed VNC server, allowing the attacker to obtain
the client's credentials. (CVE-2011-1775)

All tigervnc users should upgrade to these updated packages, which
contain a backported patch to correct this issue.

See also :

http://www.nessus.org/u?c15ee9f6

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61069 ()

Bugtraq ID:

CVE ID: CVE-2011-1775