[RHSA-2013:1195-01] Important: kernel security and bug fix update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Important: kernel security and bug fix update

Advisory ID: RHSA-2013:1195-01

Product: Red Hat OpenStack

Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1195.html

Issue date: 2013-09-03

CVE Names: CVE-2012-6544 CVE-2013-2146 CVE-2013-2206

CVE-2013-2224 CVE-2013-2232 CVE-2013-2237

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1. Summary:

 

Updated kernel packages that fix multiple security issues and several bugs

are now available for Red Hat OpenStack 3.0.

 

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:

 

OpenStack 3 - noarch, x86_64

 

3. Description:

 

Red Hat OpenStack 3.0 includes a custom Red Hat Enterprise Linux 6.4

kernel. These custom kernel packages include support for network

namespaces, this support is required to facilitate advanced OpenStack

Networking deployments.

 

This update fixes the following security issues:

 

* A flaw was found in the way the Linux kernel's Stream Control

Transmission Protocol (SCTP) implementation handled duplicate cookies. If a

local user queried SCTP connection information at the same time a remote

attacker has initialized a crafted SCTP connection to the system, it could

trigger a NULL pointer dereference, causing the system to crash.

(CVE-2013-2206, Important)

 

* An invalid free flaw was found in the Linux kernel's TCP/IP protocol

suite implementation. A local, unprivileged user could use this flaw to

corrupt kernel memory via crafted sendmsg() calls, allowing them to cause a

denial of service or, potentially, escalate their privileges on the system.

(CVE-2013-2224, Important)

 

* A flaw was found in the Linux kernel's Performance Events implementation.

On systems with certain Intel processors, a local, unprivileged user could

use this flaw to cause a denial of service by leveraging the perf subsystem

to write into the reserved bits of the OFFCORE_RSP_0 and OFFCORE_RSP_1

model-specific registers. (CVE-2013-2146, Moderate)

 

* An invalid pointer dereference flaw was found in the Linux kernel's

TCP/IP protocol suite implementation. A local, unprivileged user could use

this flaw to crash the system or, potentially, escalate their privileges on

the system by using sendmsg() with an IPv6 socket connected to an IPv4

destination. (CVE-2013-2232, Moderate)

 

* Information leak flaws in the Linux kernel's Bluetooth implementation

could allow a local, unprivileged user to leak kernel memory to user-space.

(CVE-2012-6544, Low)

 

* An information leak flaw in the Linux kernel could allow a privileged,

local user to leak kernel memory to user-space. (CVE-2013-2237, Low)

 

In addition, the following bugs and features have been addressed:

995409, 995125, 993251, 985838, 975974

 

More information on the Red Hat Enterprise Linux 6.4 kernel packages upon

which these custom kernel packages are based is available in

RHSA-2013:1173:

 

https://rhn.redhat.com/errata/RHSA-2013-1173.html

 

All Red Hat OpenStack 3.0 users deploying the OpenStack Networking service

are advised to install these updated packages.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

Details on how to use the Red Hat Network to apply this update are

available at https://access.redhat.com/site/articles/11258

 

This Red Hat OpenStack 3.0 kernel may be installed by running this command

while logged in as the root user on a system that has the required

entitlements and subscriptions attached:

 

# yum install "kernel-2.6.*.openstack.el6.x86_64"

 

Documentation for both stable and preview releases of Red Hat OpenStack is

available at:

 

https://access.redhat.com/site/documentation/Red_Hat_OpenStack/

 

In particular it is highly recommended that all users read the Release

Notes document for the relevant Red Hat OpenStack release prior to

installation.

 

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

 

922414 - CVE-2012-6544 Kernel: Bluetooth: HCI & L2CAP information leaks

971309 - CVE-2013-2146 Kernel: perf/x86: offcore_rsp valid mask for SNB/IVB

976562 - CVE-2013-2206 kernel: sctp: duplicate cookie handling NULL pointer dereference

979936 - CVE-2013-2224 kernel: net: IP_REPOPTS invalid free

981220 - CVE-2013-2237 Kernel: net: af_key: initialize satype in key_notify_policy_flush

981552 - CVE-2013-2232 Kernel: ipv6: using ipv4 vs ipv6 structure during routing lookup in sendmsg

 

6. Package List:

 

OpenStack 3:

 

Source:

ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHOS/SRPMS/kernel-2.6.32-358.118.1.openstack.el6.src.rpm

 

noarch:

kernel-doc-2.6.32-358.118.1.openstack.el6.noarch.rpm

kernel-firmware-2.6.32-358.118.1.openstack.el6.noarch.rpm

 

x86_64:

kernel-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-debug-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-debug-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-debug-devel-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-debuginfo-common-x86_64-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-devel-2.6.32-358.118.1.openstack.el6.x86_64.rpm

kernel-headers-2.6.32-358.118.1.openstack.el6.x86_64.rpm

perf-2.6.32-358.118.1.openstack.el6.x86_64.rpm

perf-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm

python-perf-2.6.32-358.118.1.openstack.el6.x86_64.rpm

python-perf-debuginfo-2.6.32-358.118.1.openstack.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-2012-6544.html

https://www.redhat.com/security/data/cve/CVE-2013-2146.html

https://www.redhat.com/security/data/cve/CVE-2013-2206.html

https://www.redhat.com/security/data/cve/CVE-2013-2224.html

https://www.redhat.com/security/data/cve/CVE-2013-2232.html

https://www.redhat.com/security/data/cve/CVE-2013-2237.html

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

https://access.redhat.com/site/documentation/Red_Hat_OpenStack/

https://rhn.redhat.com/errata/RHSA-2013-1173.html

 

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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