RHEL 2.1 : vnc (RHSA-2003:068)

Medium Nessus Plugin ID 12370


The remote Red Hat host is missing one or more security updates.


Updated VNC packages are available to fix a weak cookie vulnerability.

VNC is a tool for providing a remote graphical user interface.

The VNC server acts as an X server, but the script for starting it generates an MIT X cookie (which is used for X authentication) without using a strong enough random number generator. This could allow an attacker to be able to more easily guess the authentication cookie.

All users of VNC are advised to upgrade to these erratum packages, which contain a patch to correct this issue.


Update the affected vnc, vnc-doc and / or vnc-server packages.

See Also



Plugin Details

Severity: Medium

ID: 12370

File Name: redhat-RHSA-2003-068.nasl

Version: $Revision: 1.18 $

Type: local

Agent: unix

Published: 2004/07/06

Modified: 2016/12/28

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:vnc, p-cpe:/a:redhat:enterprise_linux:vnc-doc, p-cpe:/a:redhat:enterprise_linux:vnc-server, cpe:/o:redhat:enterprise_linux:2.1

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Patch Publication Date: 2003/02/26

Reference Information

CVE: CVE-2002-1511

RHSA: 2003:068