Important: kdebase security update

Related Vulnerabilities: CVE-2010-0436   CVE-2010-0436  

Synopsis

Important: kdebase security update

Type/Severity

Security Advisory: Important

Topic

Updated kdebase packages that fix one security issue are now available for
Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

Description

The K Desktop Environment (KDE) is a graphical desktop environment for the
X Window System. The kdebase packages include core applications for KDE.

A privilege escalation flaw was found in the KDE Display Manager (KDM). A
local user with console access could trigger a race condition, possibly
resulting in the permissions of an arbitrary file being set to world
writable, allowing privilege escalation. (CVE-2010-0436)

Red Hat would like to thank Sebastian Krahmer of the SuSE Security Team for
responsibly reporting this issue.

Users of KDE should upgrade to these updated packages, which contain a
backported patch to correct this issue. The system should be rebooted for
this update to take effect. After the reboot, administrators should
manually remove all leftover user-owned dmctl-* directories in
"/var/run/xdmctl/".

Solution

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

  • Red Hat Enterprise Linux Server 5 x86_64
  • Red Hat Enterprise Linux Server 5 ia64
  • Red Hat Enterprise Linux Server 5 i386
  • 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 4.8 x86_64
  • Red Hat Enterprise Linux Server - Extended Update Support 4.8 ia64
  • Red Hat Enterprise Linux Server - Extended Update Support 4.8 i386
  • Red Hat Enterprise Linux Workstation 5 x86_64
  • Red Hat Enterprise Linux Workstation 5 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 5 x86_64
  • Red Hat Enterprise Linux Desktop 5 i386
  • Red Hat Enterprise Linux Desktop 4 x86_64
  • Red Hat Enterprise Linux Desktop 4 i386
  • Red Hat Enterprise Linux for IBM z Systems 5 s390x
  • 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 4.8 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 4.8 s390
  • Red Hat Enterprise Linux for Power, big endian 5 ppc
  • Red Hat Enterprise Linux for Power, big endian 4 ppc
  • Red Hat Enterprise Linux for Power, big endian - Extended Update Support 4.8 ppc
  • Red Hat Enterprise Linux Server from RHUI 5 x86_64
  • Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

  • BZ - 570613 - CVE-2010-0436 kdm privilege escalation flaw

CVEs

References