RHEL 6 : MRG (RHSA-2012:0061)

This script is Copyright (C) 2014-2017 Tenable Network Security, Inc.


Synopsis :

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

Description :

Updated kernel-rt packages that fix one security issue are now
available for Red Hat Enterprise MRG 2.1.

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.

The kernel-rt packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issue :

* It was found that permissions were not checked properly in the Linux
kernel when handling the /proc/[pid]/mem writing functionality. A
local, unprivileged user could use this flaw to escalate their
privileges. Refer to Red Hat Knowledgebase article DOC-69129, linked
to in the References, for further information. (CVE-2012-0056,
Important)

Red Hat would like to thank Juri Aedla for reporting this issue.

Users should upgrade to these updated packages, which correct this
issue. The system must be rebooted for this update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2012-0056.html
https://access.redhat.com/kb/docs/DOC-69129
http://rhn.redhat.com/errata/RHSA-2012-0061.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.4
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 76636 ()

Bugtraq ID: 51625

CVE ID: CVE-2012-0056

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