what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Red Hat Security Advisory 2013-1783-01

Red Hat Security Advisory 2013-1783-01
Posted Dec 6, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1783-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A race condition was found in the way asynchronous I/O and fallocate() interacted when using the ext4 file system. A local, unprivileged user could use this flaw to expose random data from an extent whose data blocks have not yet been written, and thus contain data from a deleted file. An information leak flaw was found in the way the Linux kernel's device mapper subsystem, under certain conditions, interpreted data written to snapshot block devices. An attacker could use this flaw to read data from disk blocks in free space, which are normally inaccessible.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2012-4508, CVE-2013-2851, CVE-2013-4299
SHA-256 | cff59b9f88b0673c0f659fb3e6ef8f092e408c092cba79fe92e8d1112298771e

Red Hat Security Advisory 2013-1783-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2013:1783-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1783.html
Issue date: 2013-12-05
CVE Names: CVE-2012-4508 CVE-2013-2851 CVE-2013-4299
=====================================================================

1. Summary:

Updated kernel packages that fix three security issues and several bugs are
now available for Red Hat Enterprise Linux 6.3 Extended Update Support.

The Red Hat Security Response Team has rated this update as having
important 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 Compute Node EUS (v. 6.3) - noarch, x86_64
Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) - x86_64
Red Hat Enterprise Linux Server EUS (v. 6.3) - i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 6.3) - i386, ppc64, s390x, x86_64

3. Description:

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

* A race condition was found in the way asynchronous I/O and fallocate()
interacted when using the ext4 file system. A local, unprivileged user
could use this flaw to expose random data from an extent whose data blocks
have not yet been written, and thus contain data from a deleted file.
(CVE-2012-4508, Important)

* An information leak flaw was found in the way the Linux kernel's device
mapper subsystem, under certain conditions, interpreted data written to
snapshot block devices. An attacker could use this flaw to read data from
disk blocks in free space, which are normally inaccessible. (CVE-2013-4299,
Moderate)

* A format string flaw was found in the Linux kernel's block layer.
A privileged, local user could potentially use this flaw to escalate their
privileges to kernel level (ring0). (CVE-2013-2851, Low)

Red Hat would like to thank Theodore Ts'o for reporting CVE-2012-4508,
Fujitsu for reporting CVE-2013-4299, and Kees Cook for reporting
CVE-2013-2851. Upstream acknowledges Dmitry Monakhov as the original
reporter of CVE-2012-4508.

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.

All kernel users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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/site/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/):

869904 - CVE-2012-4508 kernel: ext4: AIO vs fallocate stale data exposure
969515 - CVE-2013-2851 kernel: block: passing disk names as format strings
1004233 - CVE-2013-4299 kernel: dm: dm-snapshot data leak

6. Package List:

Red Hat Enterprise Linux Compute Node EUS (v. 6.3):

Source:
kernel-2.6.32-279.39.1.el6.src.rpm

noarch:
kernel-doc-2.6.32-279.39.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.39.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.39.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.39.1.el6.x86_64.rpm
perf-2.6.32-279.39.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm

Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.3) :

Source:
kernel-2.6.32-279.39.1.el6.src.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.39.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 6.3):

Source:
kernel-2.6.32-279.39.1.el6.src.rpm

i386:
kernel-2.6.32-279.39.1.el6.i686.rpm
kernel-debug-2.6.32-279.39.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-279.39.1.el6.i686.rpm
kernel-debug-devel-2.6.32-279.39.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.39.1.el6.i686.rpm
kernel-devel-2.6.32-279.39.1.el6.i686.rpm
kernel-headers-2.6.32-279.39.1.el6.i686.rpm
perf-2.6.32-279.39.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.39.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.i686.rpm

noarch:
kernel-doc-2.6.32-279.39.1.el6.noarch.rpm
kernel-firmware-2.6.32-279.39.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-279.39.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debug-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-279.39.1.el6.ppc64.rpm
kernel-devel-2.6.32-279.39.1.el6.ppc64.rpm
kernel-headers-2.6.32-279.39.1.el6.ppc64.rpm
perf-2.6.32-279.39.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-279.39.1.el6.s390x.rpm
kernel-debug-2.6.32-279.39.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-279.39.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-279.39.1.el6.s390x.rpm
kernel-devel-2.6.32-279.39.1.el6.s390x.rpm
kernel-headers-2.6.32-279.39.1.el6.s390x.rpm
kernel-kdump-2.6.32-279.39.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-279.39.1.el6.s390x.rpm
perf-2.6.32-279.39.1.el6.s390x.rpm
perf-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.s390x.rpm

x86_64:
kernel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.39.1.el6.x86_64.rpm
kernel-devel-2.6.32-279.39.1.el6.x86_64.rpm
kernel-headers-2.6.32-279.39.1.el6.x86_64.rpm
perf-2.6.32-279.39.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 6.3):

Source:
kernel-2.6.32-279.39.1.el6.src.rpm

i386:
kernel-debug-debuginfo-2.6.32-279.39.1.el6.i686.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-279.39.1.el6.i686.rpm
perf-debuginfo-2.6.32-279.39.1.el6.i686.rpm
python-perf-2.6.32-279.39.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.i686.rpm

ppc64:
kernel-debug-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-279.39.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm
python-perf-2.6.32-279.39.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-279.39.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
perf-debuginfo-2.6.32-279.39.1.el6.s390x.rpm
python-perf-2.6.32-279.39.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-279.39.1.el6.s390x.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-279.39.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-2.6.32-279.39.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-279.39.1.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-2012-4508.html
https://www.redhat.com/security/data/cve/CVE-2013-2851.html
https://www.redhat.com/security/data/cve/CVE-2013-4299.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/6.3_Technical_Notes/kernel.html

8. Contact:

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

Copyright 2013 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.4 (GNU/Linux)

iD8DBQFSoLxnXlSAg2UNWIIRAm9YAJ4sL64JK41N0X+WcyefPz9TAPeHowCeIIOv
OMCMw5nf5RdP7BnNmKDy4jI=
=OCMm
-----END PGP SIGNATURE-----


--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce
Login or Register to add favorites

File Archive:

September 2022

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Sep 1st
    23 Files
  • 2
    Sep 2nd
    12 Files
  • 3
    Sep 3rd
    0 Files
  • 4
    Sep 4th
    0 Files
  • 5
    Sep 5th
    10 Files
  • 6
    Sep 6th
    8 Files
  • 7
    Sep 7th
    30 Files
  • 8
    Sep 8th
    14 Files
  • 9
    Sep 9th
    26 Files
  • 10
    Sep 10th
    0 Files
  • 11
    Sep 11th
    0 Files
  • 12
    Sep 12th
    5 Files
  • 13
    Sep 13th
    28 Files
  • 14
    Sep 14th
    15 Files
  • 15
    Sep 15th
    17 Files
  • 16
    Sep 16th
    9 Files
  • 17
    Sep 17th
    0 Files
  • 18
    Sep 18th
    0 Files
  • 19
    Sep 19th
    12 Files
  • 20
    Sep 20th
    15 Files
  • 21
    Sep 21st
    20 Files
  • 22
    Sep 22nd
    13 Files
  • 23
    Sep 23rd
    12 Files
  • 24
    Sep 24th
    0 Files
  • 25
    Sep 25th
    0 Files
  • 26
    Sep 26th
    30 Files
  • 27
    Sep 27th
    27 Files
  • 28
    Sep 28th
    8 Files
  • 29
    Sep 29th
    14 Files
  • 30
    Sep 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Hosting By
Rokasec
close