Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 526
Alerts This Week
Warning Icon 1 526

Critical Update for Red Hat Enterprise Linux 6: RHSA-2013:1282-01 for rtkit

red hat
Calendar Grey September 24, 2013
Dist Redhat Esm H88
Red Hat Security Advisory Synopsis: Important: rtkit security update Advisory ID: RHSA-2013:1282-01
An updated rtkit package that fixes one security issue is 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/site/articles/11258

Summary

RealtimeKit is a D-Bus system service that changes the scheduling policy of user processes/threads to SCHED_RR (that is, realtime scheduling mode) on request. It is intended to be used as a secure mechanism to allow real-time scheduling to be used by normal user processes.
It was found that RealtimeKit communicated with PolicyKit for authorization using a D-Bus API that is vulnerable to a race condition. This could have led to intended PolicyKit authorizations being bypassed. This update modifies RealtimeKit to communicate with PolicyKit via a different API that is not vulnerable to the race condition. (CVE-2013-4326)
All rtkit users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory Red Hat critical fix race condition rtkit

References

https://access.redhat.com/security/cve/CVE-2013-4326 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: rtkit-0.5-2.el6_4.i686.rpm rtkit-debuginfo-0.5-2.el6_4.i686.rpm
x86_64: rtkit-0.5-2.el6_4.x86_64.rpm rtkit-debuginfo-0.5-2.el6_4.x86_64.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source:
x86_64: rtkit-0.5-2.el6_4.x86_64.rpm rtkit-debuginfo-0.5-2.el6_4.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source:
i386: rtkit-0.5-2.el6_4.i686.rpm rtkit-debuginfo-0.5-2.el6_4.i686.rpm
ppc64: rtkit-0.5-2.el6_4.ppc64.rpm rtkit-debuginfo-0.5-2.el6_4.ppc64.rpm
s390x: rtkit-0.5-2.el6_4.s390x.rpm rtkit-debuginfo-0.5-2.el6_4.s390x.rpm
x86_64: rtkit-0.5-2.el6_4.x86_64.rpm rtkit-debuginfo-0.5-2.el6_4.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
i386: rtkit-0.5-2.el6_4.i686.rpm rtkit-debuginfo-0.5-2.el6_4.i686.rpm
x86_64: rtkit-0.5-2.el6_4.x86_64.rpm rtkit-debuginfo-0.5-2.el6_4.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key#package


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:1282-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1282.html
Issue date: 2013-09-24

Topic

An updated rtkit package that fixes one security issue is now available forRed Hat Enterprise Linux 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 critical fix race condition rtkit

Relevant Releases Architectures

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

Bugs Fixed

1006677 - CVE-2013-4326 rtkit: insecure calling of polkit

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.