Synopsis

Moderate: tk security update

Type / Sévérité

Security Advisory: Moderate

Sujet

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.

Description

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.
(CVE-2008-0553)

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. (CVE-2007-5378)

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

Solution

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

Produits concernés

• Red Hat Enterprise Linux Server 4 x86_64
• Red Hat Enterprise Linux Server 4 ia64
• Red Hat Enterprise Linux Server 4 i386
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 ia64
• Red Hat Enterprise Linux Server - Extended Update Support 4.6 i386
• Red Hat Enterprise Linux Workstation 4 x86_64
• Red Hat Enterprise Linux Workstation 4 ia64
• Red Hat Enterprise Linux Workstation 4 i386
• Red Hat Enterprise Linux Desktop 4 x86_64
• Red Hat Enterprise Linux Desktop 4 i386
• Red Hat Enterprise Linux for IBM z Systems 4 s390x
• Red Hat Enterprise Linux for IBM z Systems 4 s390
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6 s390
• Red Hat Enterprise Linux for Power, big endian 4 ppc
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.6 ppc

Correctifs

• BZ - 332021 - CVE-2007-5378 Tk GIF processing buffer overflow
• BZ - 431518 - CVE-2008-0553 tk: GIF handling buffer overflow

CVE

• CVE-2008-0553
• CVE-2007-5378

Références

• http://www.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux for IBM z Systems 4

SRPM
s390x
tk-8.4.7-3.el4_6.1.s390.rpm	SHA-256: b66e3a69f22186a386fbe82c98e0c6286fe976132daa5ecd635277c48e1ed645
s390
tk-8.4.7-3.el4_6.1.s390.rpm	SHA-256: b66e3a69f22186a386fbe82c98e0c6286fe976132daa5ecd635277c48e1ed645
tk-devel-8.4.7-3.el4_6.1.s390.rpm	SHA-256: e0b57e7bb7ddee725b1f64f48c82693add6075078854937427b2761b20f69684

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.6

SRPM
s390x
tk-8.4.7-3.el4_6.1.s390.rpm	SHA-256: b66e3a69f22186a386fbe82c98e0c6286fe976132daa5ecd635277c48e1ed645
s390
tk-8.4.7-3.el4_6.1.s390.rpm	SHA-256: b66e3a69f22186a386fbe82c98e0c6286fe976132daa5ecd635277c48e1ed645
tk-devel-8.4.7-3.el4_6.1.s390.rpm	SHA-256: e0b57e7bb7ddee725b1f64f48c82693add6075078854937427b2761b20f69684