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Red Hat OpenStack 3.0: RHSA-2013:1195-01 Important: Kernel Security Fix

red hat
Calendar Grey September 3, 2013
Dist Redhat Esm H88
Significant kernel patch for Red Hat OpenStack mitigates several vulnerabilities and issues, delivering crucial updates.
Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat OpenStack 3.0

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:


In particular it is highly recommended that all users read the Release Notes document for the relevant Red Hat OpenStack release prior to installation.

Summary

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://access.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.

Topics%20covered

Topics Covered

security advisory denial of service security issue bug fix important kernel OpenStack

References

https://access.redhat.com/security/cve/CVE-2012-6544 https://access.redhat.com/security/cve/CVE-2013-2146 https://access.redhat.com/security/cve/CVE-2013-2206 https://access.redhat.com/security/cve/CVE-2013-2224 https://access.redhat.com/security/cve/CVE-2013-2232 https://access.redhat.com/security/cve/CVE-2013-2237 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/errata/RHSA-2013:1173.html

Package List

OpenStack 3:
Source:
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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2013:1195-01
Product: Red Hat OpenStack
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1195.html
Issue date: 2013-09-03

Topic

Updated kernel packages that fix multiple security issues and several bugsare now available for Red Hat OpenStack 3.0.The Red Hat Security Response Team has rated this update as havingimportant security impact. Common Vulnerability Scoring System (CVSS) basescores, which give detailed severity ratings, are available for eachvulnerability from the CVE links in the References section.

Topics%20covered

Topics Covered

security advisory denial of service security issue bug fix important kernel OpenStack

Relevant Releases Architectures

OpenStack 3 - noarch, x86_64

Bugs Fixed

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

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