RHEL 6 : kernel (RHSA-2014:0949)

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 packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.2 Advanced Update Support.

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

* It was found that the Linux kernel's ptrace subsystem allowed a
traced process' instruction pointer to be set to a non-canonical
memory address without forcing the non-sysret code path when returning
to user space. A local, unprivileged user could use this flaw to crash
the system or, potentially, escalate their privileges on the system.
(CVE-2014-4699, Important)

Note: The CVE-2014-4699 issue only affected systems using an Intel
CPU.

Red Hat would like to thank Andy Lutomirski for reporting this issue.

All kernel users are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. The system
must be rebooted for this update to take effect.

See also :

https://www.redhat.com/security/data/cve/CVE-2014-4699.html
http://rhn.redhat.com/errata/RHSA-2014-0949.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 : 5.7
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 79037 ()

Bugtraq ID:

CVE ID: CVE-2014-4699

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