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CentOS 6 : rtkit (CESA-2013:1282)
medium Nessus Plugin ID 70104
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Synopsis
The remote CentOS host is missing a security update.Description
An updated rtkit package that fixes one security issue is 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.
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.
Solution
Update the affected rtkit package.See Also
Plugin Details
Severity: Medium
ID: 70104
File Name: centos_RHSA-2013-1282.nasl
Version: 1.10
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 9/25/2013
Updated: 1/4/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Medium
Base Score: 4.6
Temporal Score: 3.4
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2013-4326
Vulnerability Information
CPE: p-cpe:/a:centos:centos:rtkit, cpe:/o:centos:centos:6
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 9/24/2013
Vulnerability Publication Date: 10/3/2013
Reference Information
CVE: CVE-2013-4326
BID: 62505
RHSA: 2013:1282