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[RHSA-2013:0223-01] Moderate: kernel security and bug fix update

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=====================================================================

Red Hat Security Advisory

 

Synopsis: Moderate: kernel security and bug fix update

Advisory ID: RHSA-2013:0223-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-0223.html

Issue date: 2013-02-05

CVE Names: CVE-2012-4398 CVE-2012-4461 CVE-2012-4530

=====================================================================

 

1. Summary:

 

Updated kernel packages that fix three security issues and several bugs are

now available for Red Hat Enterprise Linux 6.

 

The Red Hat Security Response Team has rated this update as having moderate

security impact. Common Vulnerability Scoring System (CVSS) base scores,

which give detailed severity ratings, are available for each vulnerability

from the CVE links in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - noarch, x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

 

3. 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 a deadlock could occur in the Out of Memory (OOM)

killer. A process could trigger this deadlock by consuming a large amount

of memory, and then causing request_module() to be called. A local,

unprivileged user could use this flaw to cause a denial of service

(excessive memory consumption). (CVE-2012-4398, Moderate)

 

* A flaw was found in the way the KVM (Kernel-based Virtual Machine)

subsystem handled guests attempting to run with the X86_CR4_OSXSAVE CPU

feature flag set. On hosts without the XSAVE CPU feature, a local,

unprivileged user could use this flaw to crash the host system. (The

"grep --color xsave /proc/cpuinfo" command can be used to verify if your

system has the XSAVE CPU feature.) (CVE-2012-4461, Moderate)

 

* A memory disclosure flaw was found in the way the load_script() function

in the binfmt_script binary format handler handled excessive recursions. A

local, unprivileged user could use this flaw to leak kernel stack memory to

user-space by executing specially-crafted scripts. (CVE-2012-4530, Low)

 

Red Hat would like to thank Tetsuo Handa for reporting CVE-2012-4398, and

Jon Howell for reporting CVE-2012-4461.

 

This update also fixes several bugs. Documentation for these changes 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 correct these issues, and fix the bugs noted in the Technical

Notes. The system must be rebooted for this update to take effect.

 

4. Solution:

 

Before applying this update, make sure all previously-released errata

relevant to your system have been applied.

 

This update is available via the Red Hat Network. Details on how to

use the Red Hat Network to apply this update are available at

https://access.redhat.com/knowledge/articles/11258

 

To install kernel packages manually, use "rpm -ivh [package]". Do not

use "rpm -Uvh" as that will remove the running kernel binaries from

your system. You may use "rpm -e" to remove old kernels after

determining that the new kernel functions properly on your system.

 

5. Bugs fixed (http://bugzilla.redhat.com/):

 

853474 - CVE-2012-4398 kernel: request_module() OOM local DoS

862900 - CVE-2012-4461 kernel: kvm: invalid opcode oops on SET_SREGS with OSXSAVE bit set

865305 - fuse: backport scatter-gather direct IO [rhel-6.3.z]

868285 - CVE-2012-4530 kernel: stack disclosure in binfmt_script load_script()

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

kernel-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-headers-2.6.32-279.22.1.el6.i686.rpm

perf-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

noarch:

kernel-doc-2.6.32-279.22.1.el6.noarch.rpm

kernel-firmware-2.6.32-279.22.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

kernel-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-headers-2.6.32-279.22.1.el6.x86_64.rpm

perf-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Desktop Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

noarch:

kernel-doc-2.6.32-279.22.1.el6.noarch.rpm

kernel-firmware-2.6.32-279.22.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

kernel-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-headers-2.6.32-279.22.1.el6.x86_64.rpm

perf-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

kernel-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-headers-2.6.32-279.22.1.el6.i686.rpm

perf-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

noarch:

kernel-doc-2.6.32-279.22.1.el6.noarch.rpm

kernel-firmware-2.6.32-279.22.1.el6.noarch.rpm

 

ppc64:

kernel-2.6.32-279.22.1.el6.ppc64.rpm

kernel-bootwrapper-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debug-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-279.22.1.el6.ppc64.rpm

kernel-devel-2.6.32-279.22.1.el6.ppc64.rpm

kernel-headers-2.6.32-279.22.1.el6.ppc64.rpm

perf-2.6.32-279.22.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

 

s390x:

kernel-2.6.32-279.22.1.el6.s390x.rpm

kernel-debug-2.6.32-279.22.1.el6.s390x.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-279.22.1.el6.s390x.rpm

kernel-devel-2.6.32-279.22.1.el6.s390x.rpm

kernel-headers-2.6.32-279.22.1.el6.s390x.rpm

kernel-kdump-2.6.32-279.22.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

kernel-kdump-devel-2.6.32-279.22.1.el6.s390x.rpm

perf-2.6.32-279.22.1.el6.s390x.rpm

perf-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

 

x86_64:

kernel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

kernel-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-headers-2.6.32-279.22.1.el6.x86_64.rpm

perf-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

ppc64:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

kernel-debuginfo-common-ppc64-2.6.32-279.22.1.el6.ppc64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

python-perf-2.6.32-279.22.1.el6.ppc64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.ppc64.rpm

 

s390x:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

kernel-debuginfo-common-s390x-2.6.32-279.22.1.el6.s390x.rpm

kernel-kdump-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

perf-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

python-perf-2.6.32-279.22.1.el6.s390x.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.s390x.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

kernel-devel-2.6.32-279.22.1.el6.i686.rpm

kernel-headers-2.6.32-279.22.1.el6.i686.rpm

perf-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

noarch:

kernel-doc-2.6.32-279.22.1.el6.noarch.rpm

kernel-firmware-2.6.32-279.22.1.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debug-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

kernel-devel-2.6.32-279.22.1.el6.x86_64.rpm

kernel-headers-2.6.32-279.22.1.el6.x86_64.rpm

perf-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 6):

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-279.22.1.el6.src.rpm

 

i386:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.i686.rpm

kernel-debuginfo-common-i686-2.6.32-279.22.1.el6.i686.rpm

perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

python-perf-2.6.32-279.22.1.el6.i686.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.i686.rpm

 

x86_64:

kernel-debug-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-279.22.1.el6.x86_64.rpm

perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-2.6.32-279.22.1.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-279.22.1.el6.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2012-4398.html

https://www.redhat.com/security/data/cve/CVE-2012-4461.html

https://www.redhat.com/security/data/cve/CVE-2012-4530.html

https://access.redhat.com/security/updates/classification/#moderate

https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html#RHSA-2013-0223

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2013 Red Hat, Inc.

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--

 

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