RHSA-2009:1127 - Security Advisory

Topic

Updated kdelibs packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 4 and 5.

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

Description

The kdelibs packages provide libraries for the K Desktop Environment (KDE).

A flaw was found in the way the KDE CSS parser handled content for the
CSS "style" attribute. A remote attacker could create a specially-crafted
CSS equipped HTML page, which once visited by an unsuspecting user, could
cause a denial of service (Konqueror crash) or, potentially, execute
arbitrary code with the privileges of the user running Konqueror.
(CVE-2009-1698)

A flaw was found in the way the KDE HTML parser handled content for the
HTML "head" element. A remote attacker could create a specially-crafted
HTML page, which once visited by an unsuspecting user, could cause a denial
of service (Konqueror crash) or, potentially, execute arbitrary code with
the privileges of the user running Konqueror. (CVE-2009-1690)

An integer overflow flaw, leading to a heap-based buffer overflow, was
found in the way the KDE JavaScript garbage collector handled memory
allocation requests. A remote attacker could create a specially-crafted
HTML page, which once visited by an unsuspecting user, could cause a denial
of service (Konqueror crash) or, potentially, execute arbitrary code with
the privileges of the user running Konqueror. (CVE-2009-1687)

Users should upgrade to these updated packages, which contain backported
patches to correct these issues. The desktop must be restarted (log out,
then log back in) for this update to take effect.

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/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 for x86_64 - Extended Update Support 5.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.3 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.3 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 ia64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 4.8 i386
• Red Hat Enterprise Linux Server - AUS 5.3 x86_64
• Red Hat Enterprise Linux Server - AUS 5.3 ia64
• Red Hat Enterprise Linux Server - AUS 5.3 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 5.3 s390x
• 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 5.3 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 - 505571 - CVE-2009-1690 kdelibs: KHTML Incorrect handling <head> element content once the <head> element was removed (DoS, ACE)
• BZ - 506453 - CVE-2009-1687 kdelibs: Integer overflow in KJS JavaScript garbage collector
• BZ - 506469 - CVE-2009-1698 kdelibs: KHTML CSS parser - incorrect handling CSS "style" attribute content (DoS, ACE)

CVEs

• CVE-2009-1687
• CVE-2009-1690
• CVE-2009-1698

References

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