(RHSA-2009:1127) Critical: kdelibs security update

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.