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RHEL 6 : rtkit (RHSA-2013:1282)

medium Nessus Plugin ID 70114

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Synopsis

The remote Red Hat host is missing one or more security updates.

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 and / or rtkit-debuginfo packages.

See Also

https://access.redhat.com/errata/RHSA-2013:1282

https://access.redhat.com/security/cve/cve-2013-4326

Plugin Details

Severity: Medium

ID: 70114

File Name: redhat-RHSA-2013-1282.nasl

Version: 1.14

Type: local

Agent: unix

Published: 9/25/2013

Updated: 1/14/2021

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.8

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:rtkit, p-cpe:/a:redhat:enterprise_linux:rtkit-debuginfo, cpe:/o:redhat:enterprise_linux:6, cpe:/o:redhat:enterprise_linux:6.4

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

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