Solution
Please Install the Updated Packages.
Insight
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.
Affected
rtkit on CentOS 6
References
Updated on 2015-03-25
Severity
Classification
-
CVE CVE-2013-4326 -
CVSS Base Score: 4.6
AV:L/AC:L/Au:N/C:P/I:P/A:P
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