RHEL 4 : tk (RHSA-2008:0135)

Medium Nessus Plugin ID 31161


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


Updated tk packages that fix a security issue are now available for Red Hat Enterprise Linux 4.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

[Updated 22 February 2008] The packages in this errata were originally pushed to the wrong Red Hat Network channels and were not available to all users. We have updated this errata with the correct channels.

Tk is a graphical toolkit for the Tcl scripting language.

An input validation flaw was discovered in Tk's GIF image handling. A code-size value read from a GIF image was not properly validated before being used, leading to a buffer overflow. A specially crafted GIF file could use this to cause a crash or, potentially, execute code with the privileges of the application using the Tk graphical toolkit.

A buffer overflow flaw was discovered in Tk's animated GIF image handling. An animated GIF containing an initial image smaller than subsequent images could cause a crash or, potentially, execute code with the privileges of the application using the Tk library.

All users are advised to upgrade to these updated packages which contain a backported patches to resolve these issues.


Update the affected tk and / or tk-devel packages.

See Also




Plugin Details

Severity: Medium

ID: 31161

File Name: redhat-RHSA-2008-0135.nasl

Version: $Revision: 1.17 $

Type: local

Agent: unix

Published: 2008/02/25

Modified: 2017/01/03

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.9

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

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:tk, p-cpe:/a:redhat:enterprise_linux:tk-devel, cpe:/o:redhat:enterprise_linux:4, cpe:/o:redhat:enterprise_linux:4.6

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2008/02/22

Reference Information

CVE: CVE-2007-5378, CVE-2008-0553

BID: 27655

RHSA: 2008:0135

CWE: 119