Scientific Linux Security Update : kernel on SL6.x i386/x86_64

This script is Copyright (C) 2012 Tenable Network Security, Inc.


Synopsis :

The remote Scientific Linux host is missing one or more security
updates.

Description :

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

This update fixes the following security issues :

- It was found that the receive hook in the ipip_init()
function in the ipip module, and in the ipgre_init()
function in the ip_gre module, could be called before
network namespaces setup is complete. If packets were
received at the time the ipip or ip_gre module was still
being loaded into the kernel, it could cause a denial of
service. (CVE-2011-1767, CVE-2011-1768, Moderate)

- It was found that an mmap() call with the MAP_PRIVATE
flag on '/dev/zero' would create transparent hugepages
and trigger a certain robustness check. A local,
unprivileged user could use this flaw to cause a denial
of service. (CVE-2011-2479, Moderate)

This update also fixes various bugs. Documentation for these bug fixes
will be available shortly from the Technical Notes document linked to
in the References section.

Users should upgrade to these updated packages, which contain
backported patches to resolve these issues, and fix the bugs noted in
the Technical Notes. The system must be rebooted for this update to
take effect.

See also :

http://www.nessus.org/u?97d9b089

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 5.4
(CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61082 ()

Bugtraq ID:

CVE ID: CVE-2011-1767
CVE-2011-2479