Updated kernel packages that fix one security issue are now available for Red Hat Enterprise Linux 4.7 Extended Update Support. The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS)

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

Synopsis:          Important: kernel security update
Advisory ID:       RHSA-2010:0677-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2010:0677.html
Issue date:        2010-09-07
CVE Names:         CVE-2010-2240 
====================================================================
1. Summary:

Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 4.7 Extended Update Support.

The Red Hat Security Response Team 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 AS version 4.7.z - i386, ia64, noarch, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux ES version 4.7.z - i386, ia64, 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 issue:

* When an application has a stack overflow, the stack could silently
overwrite another memory mapped area instead of a segmentation fault
occurring, which could cause an application to execute arbitrary code,
possibly leading to privilege escalation. It is known that the X Window
System server can be used to trigger this flaw. (CVE-2010-2240, Important)

Red Hat would like to thank the X.Org security team for reporting this
issue. Upstream acknowledges Rafal Wojtczuk as the original reporter.

Users should upgrade to these updated packages, which contain backported
patches 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

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/):

606611 - CVE-2010-2240 kernel: mm: keep a guard page below a grow-down stack segment

6. Package List:

Red Hat Enterprise Linux AS version 4.7.z:

Source:
kernel-2.6.9-78.0.32.EL.src.rpm

i386:
kernel-2.6.9-78.0.32.EL.i686.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.i686.rpm
kernel-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-hugemem-2.6.9-78.0.32.EL.i686.rpm
kernel-hugemem-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-smp-2.6.9-78.0.32.EL.i686.rpm
kernel-smp-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-xenU-2.6.9-78.0.32.EL.i686.rpm
kernel-xenU-devel-2.6.9-78.0.32.EL.i686.rpm

ia64:
kernel-2.6.9-78.0.32.EL.ia64.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.ia64.rpm
kernel-devel-2.6.9-78.0.32.EL.ia64.rpm
kernel-largesmp-2.6.9-78.0.32.EL.ia64.rpm
kernel-largesmp-devel-2.6.9-78.0.32.EL.ia64.rpm

noarch:
kernel-doc-2.6.9-78.0.32.EL.noarch.rpm

ppc:
kernel-2.6.9-78.0.32.EL.ppc64.rpm
kernel-2.6.9-78.0.32.EL.ppc64iseries.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.ppc64.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.ppc64iseries.rpm
kernel-devel-2.6.9-78.0.32.EL.ppc64.rpm
kernel-devel-2.6.9-78.0.32.EL.ppc64iseries.rpm
kernel-largesmp-2.6.9-78.0.32.EL.ppc64.rpm
kernel-largesmp-devel-2.6.9-78.0.32.EL.ppc64.rpm

s390:
kernel-2.6.9-78.0.32.EL.s390.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.s390.rpm
kernel-devel-2.6.9-78.0.32.EL.s390.rpm

s390x:
kernel-2.6.9-78.0.32.EL.s390x.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.s390x.rpm
kernel-devel-2.6.9-78.0.32.EL.s390x.rpm

x86_64:
kernel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.x86_64.rpm
kernel-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-largesmp-2.6.9-78.0.32.EL.x86_64.rpm
kernel-largesmp-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-smp-2.6.9-78.0.32.EL.x86_64.rpm
kernel-smp-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-xenU-2.6.9-78.0.32.EL.x86_64.rpm
kernel-xenU-devel-2.6.9-78.0.32.EL.x86_64.rpm

Red Hat Enterprise Linux ES version 4.7.z:

Source:
kernel-2.6.9-78.0.32.EL.src.rpm

i386:
kernel-2.6.9-78.0.32.EL.i686.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.i686.rpm
kernel-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-hugemem-2.6.9-78.0.32.EL.i686.rpm
kernel-hugemem-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-smp-2.6.9-78.0.32.EL.i686.rpm
kernel-smp-devel-2.6.9-78.0.32.EL.i686.rpm
kernel-xenU-2.6.9-78.0.32.EL.i686.rpm
kernel-xenU-devel-2.6.9-78.0.32.EL.i686.rpm

ia64:
kernel-2.6.9-78.0.32.EL.ia64.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.ia64.rpm
kernel-devel-2.6.9-78.0.32.EL.ia64.rpm
kernel-largesmp-2.6.9-78.0.32.EL.ia64.rpm
kernel-largesmp-devel-2.6.9-78.0.32.EL.ia64.rpm

noarch:
kernel-doc-2.6.9-78.0.32.EL.noarch.rpm

x86_64:
kernel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-debuginfo-2.6.9-78.0.32.EL.x86_64.rpm
kernel-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-largesmp-2.6.9-78.0.32.EL.x86_64.rpm
kernel-largesmp-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-smp-2.6.9-78.0.32.EL.x86_64.rpm
kernel-smp-devel-2.6.9-78.0.32.EL.x86_64.rpm
kernel-xenU-2.6.9-78.0.32.EL.x86_64.rpm
kernel-xenU-devel-2.6.9-78.0.32.EL.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-2010-2240
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 2010 Red Hat, Inc.
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