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Red Hat: RHSA-2013:0568-01 Important: dbus-glib Local Escalation

red hat
Calendar Grey February 26, 2013
Dist Redhat Esm H88
A critical patch for dbus-glib on Red Hat resolves a local privilege escalation vulnerability. Upgrading is advised.
Updated dbus-glib packages that fix one security issue are now available for Red Hat Enterprise Linux 5 and 6

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 https://access.redhat.com/articles/11258

Summary

dbus-glib is an add-on library to integrate the standard D-Bus library with the GLib main loop and threading model.
A flaw was found in the way dbus-glib filtered the message sender (message source subject) when the "NameOwnerChanged" signal was received. This could trick a system service using dbus-glib (such as fprintd) into believing a signal was sent from a privileged process, when it was not. A local attacker could use this flaw to escalate their privileges. (CVE-2013-0292)
All dbus-glib users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications linked against dbus-glib, such as fprintd and NetworkManager, must be restarted for this update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux local escalation important update dbus-glib

References

https://access.redhat.com/security/cve/CVE-2013-0292 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
i386: dbus-glib-0.73-11.el5_9.i386.rpm dbus-glib-debuginfo-0.73-11.el5_9.i386.rpm
x86_64: dbus-glib-0.73-11.el5_9.i386.rpm dbus-glib-0.73-11.el5_9.x86_64.rpm dbus-glib-debuginfo-0.73-11.el5_9.i386.rpm dbus-glib-debuginfo-0.73-11.el5_9.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
i386: dbus-glib-debuginfo-0.73-11.el5_9.i386.rpm dbus-glib-devel-0.73-11.el5_9.i386.rpm
x86_64: dbus-glib-debuginfo-0.73-11.el5_9.i386.rpm dbus-glib-debuginfo-0.73-11.el5_9.x86_64.rpm dbus-glib-devel-0.73-11.el5_9.i386.rpm dbus-glib-devel-0.73-11.el5_9.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source:
i386: dbus-glib-0.73-11.el5_9.i386.rpm dbus-glib-debuginfo-0.73-11.el5_9.i386.rpm dbus-glib-devel-0.73-11.el5_9.i386.rpm
ia64: dbus-glib-0.73-11.el5_9.ia64.rpm dbus-glib-debuginfo-0.73-11.el5_9.ia64.rpm dbus-glib-devel-0.73-11.el5_9.ia64.rpm
ppc: dbus-glib-0.73-11.el5_9.ppc.rpm dbus-glib-0.73-11.el5_9.ppc64.rpm dbus-glib-debuginfo-0.73-11.el5_9.ppc.rpm dbus-glib-debuginfo-0.73-11.el5_9.ppc64.rpm dbus-glib-devel-0.73-11.el5_9.ppc.rpm dbus-glib-devel-0.73-11.el5_9.ppc64.rpm
s390x: dbus-glib-0.73-11.el5_9.s390.rpm dbus-glib-0.73-11.el5_9.s390x.rpm dbus-glib-debuginfo-0.73-11.el5_9.s390.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:0568-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:0568.html
Issue date: 2013-02-26

Topic

Updated dbus-glib packages that fix one security issue are now availablefor Red Hat Enterprise Linux 5 and 6.The Red Hat Security Response Team has rated this update as havingimportant security impact. A Common Vulnerability Scoring System (CVSS)base score, which gives a detailed severity rating, is available from theCVE link in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux local escalation important update dbus-glib

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop (v. 6) - i386, 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) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Bugs Fixed

911658 - CVE-2013-0292 dbus-glib: Local privilege escalation due improper filtering of message sender when NameOwnerChanged signal received

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