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Red Hat 6.5 RHSA-2014-2009-01 Important: Kernel Privilege Escalation

Redhat Large Esm H500
Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 6.5 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which
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====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2014:2009-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2014:2009.html
Issue date:        2014-12-17
CVE Names:         CVE-2014-9322 
====================================================================
1. Summary:

Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.5 Extended Update Support.

Red Hat Product Security 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) - x86_64
Red Hat Enterprise Linux HPC Node EUS (v. 6.5) - noarch, x86_64
Red Hat Enterprise Linux Server EUS (v. 6.5) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.5) - i386, ppc64, s390x, x86_64

3. Description:

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

* A flaw was found in the way the Linux kernel handled GS segment register
base switching when recovering from a #SS (stack segment) fault on an
erroneous return to user space. A local, unprivileged user could use this
flaw to escalate their privileges on the system. (CVE-2014-9322, Important)

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.

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/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 (https://bugzilla.redhat.com/):

1172806 - CVE-2014-9322 kernel: x86: local privesc due to bad_iret and paranoid entry incompatibility

6. Package List:

Red Hat Enterprise Linux HPC Node EUS (v. 6.5):

Source:
kernel-2.6.32-431.40.2.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-431.40.2.el6.noarch.rpm
kernel-doc-2.6.32-431.40.2.el6.noarch.rpm
kernel-firmware-2.6.32-431.40.2.el6.noarch.rpm

x86_64:
kernel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-devel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm
kernel-devel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-headers-2.6.32-431.40.2.el6.x86_64.rpm
perf-2.6.32-431.40.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5):

Source:
kernel-2.6.32-431.40.2.el6.src.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 6.5):

Source:
kernel-2.6.32-431.40.2.el6.src.rpm

i386:
kernel-2.6.32-431.40.2.el6.i686.rpm
kernel-debug-2.6.32-431.40.2.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-431.40.2.el6.i686.rpm
kernel-debug-devel-2.6.32-431.40.2.el6.i686.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-431.40.2.el6.i686.rpm
kernel-devel-2.6.32-431.40.2.el6.i686.rpm
kernel-headers-2.6.32-431.40.2.el6.i686.rpm
perf-2.6.32-431.40.2.el6.i686.rpm
perf-debuginfo-2.6.32-431.40.2.el6.i686.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.i686.rpm

noarch:
kernel-abi-whitelists-2.6.32-431.40.2.el6.noarch.rpm
kernel-doc-2.6.32-431.40.2.el6.noarch.rpm
kernel-firmware-2.6.32-431.40.2.el6.noarch.rpm

ppc64:
kernel-2.6.32-431.40.2.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debug-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debug-devel-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-431.40.2.el6.ppc64.rpm
kernel-devel-2.6.32-431.40.2.el6.ppc64.rpm
kernel-headers-2.6.32-431.40.2.el6.ppc64.rpm
perf-2.6.32-431.40.2.el6.ppc64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm

s390x:
kernel-2.6.32-431.40.2.el6.s390x.rpm
kernel-debug-2.6.32-431.40.2.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
kernel-debug-devel-2.6.32-431.40.2.el6.s390x.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-431.40.2.el6.s390x.rpm
kernel-devel-2.6.32-431.40.2.el6.s390x.rpm
kernel-headers-2.6.32-431.40.2.el6.s390x.rpm
kernel-kdump-2.6.32-431.40.2.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
kernel-kdump-devel-2.6.32-431.40.2.el6.s390x.rpm
perf-2.6.32-431.40.2.el6.s390x.rpm
perf-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.s390x.rpm

x86_64:
kernel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debug-devel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm
kernel-devel-2.6.32-431.40.2.el6.x86_64.rpm
kernel-headers-2.6.32-431.40.2.el6.x86_64.rpm
perf-2.6.32-431.40.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 6.5):

Source:
kernel-2.6.32-431.40.2.el6.src.rpm

i386:
kernel-debug-debuginfo-2.6.32-431.40.2.el6.i686.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-431.40.2.el6.i686.rpm
perf-debuginfo-2.6.32-431.40.2.el6.i686.rpm
python-perf-2.6.32-431.40.2.el6.i686.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.i686.rpm

ppc64:
kernel-debug-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-431.40.2.el6.ppc64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm
python-perf-2.6.32-431.40.2.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-431.40.2.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
perf-debuginfo-2.6.32-431.40.2.el6.s390x.rpm
python-perf-2.6.32-431.40.2.el6.s390x.rpm
python-perf-debuginfo-2.6.32-431.40.2.el6.s390x.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-2.6.32-431.40.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.40.2.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

7. References:

https://access.redhat.com/security/cve/CVE-2014-9322
https://access.redhat.com/security/updates/classification#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2014 Red Hat, Inc.
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Red Hat 6.5 RHSA-2014-2009-01 Important: Kernel Privilege Escalation

red hat
Calendar Grey December 17, 2014
Dist Redhat Esm H88
Kernel updates released for CentOS 6.5 to fix a critical vulnerability related to privilege escalation.
Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 6.5 Extended Update Support

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/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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
* A flaw was found in the way the Linux kernel handled GS segment register base switching when recovering from a #SS (stack segment) fault on an erroneous return to user space. A local, unprivileged user could use this flaw to escalate their privileges on the system. (CVE-2014-9322, Important)
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.

References

https://access.redhat.com/security/cve/CVE-2014-9322 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux HPC Node EUS (v. 6.5):
Source: kernel-2.6.32-431.40.2.el6.src.rpm
noarch: kernel-abi-whitelists-2.6.32-431.40.2.el6.noarch.rpm kernel-doc-2.6.32-431.40.2.el6.noarch.rpm kernel-firmware-2.6.32-431.40.2.el6.noarch.rpm
x86_64: kernel-2.6.32-431.40.2.el6.x86_64.rpm kernel-debug-2.6.32-431.40.2.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm kernel-debug-devel-2.6.32-431.40.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm kernel-devel-2.6.32-431.40.2.el6.x86_64.rpm kernel-headers-2.6.32-431.40.2.el6.x86_64.rpm perf-2.6.32-431.40.2.el6.x86_64.rpm perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5):
Source: kernel-2.6.32-431.40.2.el6.src.rpm
x86_64: kernel-debug-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm kernel-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-431.40.2.el6.x86_64.rpm perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm python-perf-2.6.32-431.40.2.el6.x86_64.rpm python-perf-debuginfo-2.6.32-431.40.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 6.5):
Source: kernel-2.6.32-431.40.2.el6.src.rpm
i386:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2014:2009-01
Product: Red Hat Enterprise Linux
Issue date: 2014-12-17

Topic

Updated kernel packages that fix one security issue are now available forRed Hat Enterprise Linux 6.5 Extended Update Support.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Relevant Releases Architectures

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) - x86_64

Red Hat Enterprise Linux HPC Node EUS (v. 6.5) - noarch, x86_64

Red Hat Enterprise Linux Server EUS (v. 6.5) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional EUS (v. 6.5) - i386, ppc64, s390x, x86_64

Bugs Fixed

1172806 - CVE-2014-9322 kernel: x86: local privesc due to bad_iret and paranoid entry incompatibility

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