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Red Hat Enterprise Linux 6 RHSA-2011:0930-01 Moderate: NetworkManager Issue

red hat
Calendar Grey July 12, 2011
Scroller Redhat Esm H88
Red Hat has issued an urgent notification regarding a critical update for NetworkManager on RHEL 6, emphasizing the need for immediate action to address a potential security risk
Updated NetworkManager packages that fix one security issue are now available for Red Hat Enterprise Linux 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/kb/docs/DOC-11259

Summary

NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times.
It was found that NetworkManager did not properly enforce PolicyKit settings controlling the permissions to configure wireless network sharing. A local, unprivileged user could use this flaw to bypass intended PolicyKit restrictions, allowing them to enable wireless network sharing. (CVE-2011-2176)
Users of NetworkManager should upgrade to these updated packages, which contain a backported patch to correct this issue. Running instances of NetworkManager must be restarted ("service NetworkManager restart") for this update to take effect.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux NetworkManager PolicyKit wireless sharing

References

https://access.redhat.com/security/cve/CVE-2011-2176 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: NetworkManager-0.8.1-9.el6_1.1.i686.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.i686.rpm NetworkManager-glib-0.8.1-9.el6_1.1.i686.rpm NetworkManager-gnome-0.8.1-9.el6_1.1.i686.rpm
x86_64: NetworkManager-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.i686.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-glib-0.8.1-9.el6_1.1.i686.rpm NetworkManager-glib-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-gnome-0.8.1-9.el6_1.1.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
Source:
i386: NetworkManager-debuginfo-0.8.1-9.el6_1.1.i686.rpm NetworkManager-devel-0.8.1-9.el6_1.1.i686.rpm NetworkManager-glib-devel-0.8.1-9.el6_1.1.i686.rpm
x86_64: NetworkManager-debuginfo-0.8.1-9.el6_1.1.i686.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-devel-0.8.1-9.el6_1.1.i686.rpm NetworkManager-devel-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-glib-devel-0.8.1-9.el6_1.1.i686.rpm NetworkManager-glib-devel-0.8.1-9.el6_1.1.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: NetworkManager-0.8.1-9.el6_1.1.x86_64.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.i686.rpm NetworkManager-debuginfo-0.8.1-9.el6_1.1.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2011:0930-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2011:0930.html
Issue date: 2011-07-12

Topic

Updated NetworkManager packages that fix one security issue are nowavailable for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available from the CVE link inthe References section.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat Enterprise Linux NetworkManager PolicyKit wireless sharing

Relevant Releases Architectures

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 Optional (v. 6) - x86_64

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

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

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

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

Bugs Fixed

709662 - CVE-2011-2176 NetworkManager: Did not honour PolicyKit auth_admin action element by creation of Ad-Hoc wireless networks

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