====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: kernel security and bug fix update
Advisory ID:       RHSA-2011:0928-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2011:0928.html
Issue date:        2011-07-12
CVE Names:         CVE-2011-1767 CVE-2011-1768 CVE-2011-2479 
====================================================================
1. Summary:

Updated kernel packages that fix multiple security issues and various 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 HPC Node (v. 6) - noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, 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 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.

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/kb/docs/DOC-11259

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/):

702303 - CVE-2011-1767 CVE-2011-1768 kernel: netns vs proto registration ordering
711546 - RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger than 8G
712413 - Cannot find the extended attribute of #11 inode after remount
712414 - [RHEL6.1] [Kernel] Panic while running testing
713135 - MLS - cgconfigparser cannot search on /cgroup/ dirs713458 - intel-iommu: missing flush prior to removing domains + avoid broken vm/si domain unlinking
714190 - System Hang when there is smart error on IBM platform
714761 - CVE-2011-2479 kernel: thp: madvise on top of /dev/zero private mapping can lead to panic

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:

i386:
kernel-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-131.6.1.el6.i686.rpm
kernel-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-headers-2.6.32-131.6.1.el6.i686.rpm
perf-2.6.32-131.6.1.el6.i686.rpm
perf-debuginfo-2.6.32-131.6.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-131.6.1.el6.noarch.rpm
kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-131.6.1.el6.x86_64.rpm
kernel-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-headers-2.6.32-131.6.1.el6.x86_64.rpm
perf-2.6.32-131.6.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm

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

Source:

noarch:
kernel-doc-2.6.32-131.6.1.el6.noarch.rpm
kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-131.6.1.el6.x86_64.rpm
kernel-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-headers-2.6.32-131.6.1.el6.x86_64.rpm
perf-2.6.32-131.6.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:

i386:
kernel-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-131.6.1.el6.i686.rpm
kernel-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-headers-2.6.32-131.6.1.el6.i686.rpm
perf-2.6.32-131.6.1.el6.i686.rpm
perf-debuginfo-2.6.32-131.6.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-131.6.1.el6.noarch.rpm
kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-131.6.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-131.6.1.el6.ppc64.rpm
kernel-debug-2.6.32-131.6.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-131.6.1.el6.ppc64.rpm
kernel-devel-2.6.32-131.6.1.el6.ppc64.rpm
kernel-headers-2.6.32-131.6.1.el6.ppc64.rpm
perf-2.6.32-131.6.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-131.6.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-131.6.1.el6.s390x.rpm
kernel-debug-2.6.32-131.6.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-131.6.1.el6.s390x.rpm
kernel-devel-2.6.32-131.6.1.el6.s390x.rpm
kernel-headers-2.6.32-131.6.1.el6.s390x.rpm
kernel-kdump-2.6.32-131.6.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-131.6.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-131.6.1.el6.s390x.rpm
perf-2.6.32-131.6.1.el6.s390x.rpm
perf-debuginfo-2.6.32-131.6.1.el6.s390x.rpm

x86_64:
kernel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-131.6.1.el6.x86_64.rpm
kernel-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-headers-2.6.32-131.6.1.el6.x86_64.rpm
perf-2.6.32-131.6.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:

i386:
kernel-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-131.6.1.el6.i686.rpm
kernel-devel-2.6.32-131.6.1.el6.i686.rpm
kernel-headers-2.6.32-131.6.1.el6.i686.rpm
perf-2.6.32-131.6.1.el6.i686.rpm
perf-debuginfo-2.6.32-131.6.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-131.6.1.el6.noarch.rpm
kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-131.6.1.el6.x86_64.rpm
kernel-devel-2.6.32-131.6.1.el6.x86_64.rpm
kernel-headers-2.6.32-131.6.1.el6.x86_64.rpm
perf-2.6.32-131.6.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-131.6.1.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://access.redhat.com/security/cve/CVE-2011-1767
https://access.redhat.com/security/cve/CVE-2011-1768
https://access.redhat.com/security/cve/CVE-2011-2479
https://access.redhat.com/security/updates/classification#moderate
https://access.redhat.com/search/

8. Contact:

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

Copyright 2011 Red Hat, Inc.

Red Hat: RHSA-2011:0928-01 Moderate: Kernel Security Threats

red hat

July 12, 2011

Updated kernel packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise Linux 6

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/kb/docs/DOC-11259

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.
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.

Topics Covered

security advisory moderate kernel update Red Hat Enterprise Linux security impact bug fixes system reboot

References

https://access.redhat.com/security/cve/CVE-2011-1767 https://access.redhat.com/security/cve/CVE-2011-1768 https://access.redhat.com/security/cve/CVE-2011-2479 https://access.redhat.com/security/updates/classification#moderate https://access.redhat.com/search/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source:
i386: kernel-2.6.32-131.6.1.el6.i686.rpm kernel-debug-2.6.32-131.6.1.el6.i686.rpm kernel-debug-debuginfo-2.6.32-131.6.1.el6.i686.rpm kernel-debug-devel-2.6.32-131.6.1.el6.i686.rpm kernel-debuginfo-2.6.32-131.6.1.el6.i686.rpm kernel-debuginfo-common-i686-2.6.32-131.6.1.el6.i686.rpm kernel-devel-2.6.32-131.6.1.el6.i686.rpm kernel-headers-2.6.32-131.6.1.el6.i686.rpm perf-2.6.32-131.6.1.el6.i686.rpm perf-debuginfo-2.6.32-131.6.1.el6.i686.rpm
noarch: kernel-doc-2.6.32-131.6.1.el6.noarch.rpm kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm
x86_64: kernel-2.6.32-131.6.1.el6.x86_64.rpm kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm kernel-debug-devel-2.6.32-131.6.1.el6.x86_64.rpm kernel-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-131.6.1.el6.x86_64.rpm kernel-devel-2.6.32-131.6.1.el6.x86_64.rpm kernel-headers-2.6.32-131.6.1.el6.x86_64.rpm perf-2.6.32-131.6.1.el6.x86_64.rpm perf-debuginfo-2.6.32-131.6.1.el6.x86_64.rpm
Red Hat Enterprise Linux HPC Node (v. 6):
Source:
noarch: kernel-doc-2.6.32-131.6.1.el6.noarch.rpm kernel-firmware-2.6.32-131.6.1.el6.noarch.rpm
x86_64: kernel-2.6.32-131.6.1.el6.x86_64.rpm kernel-debug-2.6.32-131.6.1.el6.x86_64.rpm

Read the Full Advisory

Advisory ID: RHSA-2011:0928-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2011:0928.html

Issue date: 2011-07-12

Topic

Updated kernel packages that fix multiple security issues and various bugsare now available for Red Hat Enterprise Linux 6.The Red Hat Security Response Team has rated this update as having moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Topics Covered

security advisory moderate kernel update Red Hat Enterprise Linux security impact bug fixes system reboot

Relevant Releases Architectures

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

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

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

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

Bugs Fixed

702303 - CVE-2011-1767 CVE-2011-1768 kernel: netns vs proto registration ordering

711546 - RHEL6.1 x86_64 HVM guest crashes on AMD host when guest memory size is larger than 8G

712413 - Cannot find the extended attribute of #11 inode after remount

712414 - [RHEL6.1] [Kernel] Panic while running testing

713135 - MLS - cgconfigparser cannot search on /cgroup/ dirs713458 - intel-iommu: missing flush prior to removing domains + avoid broken vm/si domain unlinking

714190 - System Hang when there is smart error on IBM platform

714761 - CVE-2011-2479 kernel: thp: madvise on top of /dev/zero private mapping can lead to panic

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