Red Hat Security Advisory
Synopsis: Important: polkit security update
Advisory ID: RHSA-2011:0455-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0455.html
Issue date: 2011-04-19
CVE Names: CVE-2011-1485
Updated polkit packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64
PolicyKit is a toolkit for defining and handling authorizations.
A race condition flaw was found in the PolicyKit pkexec utility and polkitd
daemon. A local user could use this flaw to appear as a privileged user to
pkexec, allowing them to execute arbitrary commands as root by running
those commands with pkexec. (CVE-2011-1485)
Red Hat would like to thank Neel Mehta of Google for reporting this issue.
All polkit users should upgrade to these updated packages, which contain
backported patches to correct this issue. The system must be rebooted for
this update to take effect.
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