Scientific Linux Security Update : Scientific Linux 6 kernel on SL6.x i386/x86_64

This script is Copyright (C) 2012-2013 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 :

- The proc file system could allow a local, unprivileged
user to obtain sensitive information or possibly cause
integrity issues. (CVE-2011-1020, Moderate)

- Non-member VLAN (virtual LAN) packet handling for
interfaces in promiscuous mode and also using the be2net
driver could allow an attacker on the local network to
cause a denial of service. (CVE-2011-3347, Moderate)

- A flaw was found in the Linux kernel in the way
splitting two extents in
ext4_ext_convert_to_initialized() worked. A local,
unprivileged user with access to mount and unmount ext4
file systems could use this flaw to cause a denial of
service. (CVE-2011-3638, Moderate)

- A NULL pointer dereference flaw was found in the way the
Linux kernel's key management facility handled
user-defined key types. A local, unprivileged user could
use the keyctl utility to cause a denial of service.
(CVE-2011-4110, Moderate)

This update also fixes several hundred bugs and adds enhancements.
Refer to the upstream Release Notes for information on the most
significant of these changes.

All Scientific Linux 6 users are advised to install these updated
packages, which correct these issues, and fix the bugs and add the
enhancements noted. The system must be rebooted for this update to
take effect.

See also :

http://www.nessus.org/u?c44d07a4

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 4.6
(CVSS2#AV:A/AC:H/Au:N/C:N/I:N/A:C)

Family: Scientific Linux Local Security Checks

Nessus Plugin ID: 61185 ()

Bugtraq ID:

CVE ID: CVE-2011-1020
CVE-2011-3347
CVE-2011-3638
CVE-2011-4110