RHEL 5 : tk (RHSA-2008:0136)

Medium Nessus Plugin ID 31162


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 5.

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

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: 31162

File Name: redhat-RHSA-2008-0136.nasl

Version: $Revision: 1.18 $

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:5, cpe:/o:redhat:enterprise_linux:5.1

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: 2008/02/21

Reference Information

CVE: CVE-2007-5137, CVE-2008-0553

BID: 25826, 27655

RHSA: 2008:0136

CWE: 119