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Red Hat OpenStack 3.0 RHSA-2013:1080-01 Moderate: Kernel Security Issues

red hat
Calendar Grey July 16, 2013
Scroller Redhat Esm H88
Kernel updates released for Red Hat OpenStack 3.0 tackle vulnerabilities and various bugs, all rated with moderate severity.
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 tcp_read_sock() function in the Linux kernel's IPv4 TCP/IP protocol suite implementation in the way socket buffers (skb) were handled. A local, unprivileged user could trigger this issue via a call to splice(), leading to a denial of service. (CVE-2013-2128, Moderate)
* Information leak flaws in the Linux kernel could allow a local, unprivileged user to leak kernel memory to user-space. (CVE-2012-6548, CVE-2013-2634, CVE-2013-2635, CVE-2013-3222, CVE-2013-3224, CVE-2013-3225, Low)
* An information leak was found in the Linux kernel's POSIX signals implementation. A local, unprivileged user could use this flaw to bypass the Address Space Layout Randomization (ASLR) security feature. (CVE-2013-0914, Low)
* A format string flaw was found in the ext3_msg() function in the Linux kernel's ext3 file system implementation. A local user who is able to mount an ext3 file system could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-1848, Low)
* A format string flaw was found in the b43_do_request_fw() function in the Linux kernel's b43 driver implementation. A local user who is able to specify the "fwpostfix" b43 module parameter could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-2852, Low)
* A NULL pointer dereference flaw was found in the Linux kernel's ftrace and function tracer implementations. A local user who has the CAP_SYS_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-3301, Low)
Red Hat would like to thank Kees Cook for reporting CVE-2013-2852.
More information on the Red Hat Enterprise Linux 6.4 kernel packages upon which these custom kernel packages are based is available in RHSA-2013:1051:
https://access.redhat.com/errata/RHSA-2013:1051.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 kernel update bug fix moderate severity Red Hat OpenStack

References

https://access.redhat.com/security/cve/CVE-2012-6548 https://access.redhat.com/security/cve/CVE-2013-0914 https://access.redhat.com/security/cve/CVE-2013-1848 https://access.redhat.com/security/cve/CVE-2013-2128 https://access.redhat.com/security/cve/CVE-2013-2634 https://access.redhat.com/security/cve/CVE-2013-2635 https://access.redhat.com/security/cve/CVE-2013-2852 https://access.redhat.com/security/cve/CVE-2013-3222 https://access.redhat.com/security/cve/CVE-2013-3224 https://access.redhat.com/security/cve/CVE-2013-3225 https://access.redhat.com/security/cve/CVE-2013-3301 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/errata/RHSA-2013:1051.html

Package List

OpenStack 3:
Source:
noarch: kernel-doc-2.6.32-358.114.1.openstack.el6.noarch.rpm kernel-firmware-2.6.32-358.114.1.openstack.el6.noarch.rpm
x86_64: kernel-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-debug-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-debug-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-debug-devel-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-debuginfo-common-x86_64-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-devel-2.6.32-358.114.1.openstack.el6.x86_64.rpm kernel-headers-2.6.32-358.114.1.openstack.el6.x86_64.rpm perf-2.6.32-358.114.1.openstack.el6.x86_64.rpm perf-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm python-perf-2.6.32-358.114.1.openstack.el6.x86_64.rpm python-perf-debuginfo-2.6.32-358.114.1.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


Advisory ID: RHSA-2013:1080-01
Product: Red Hat OpenStack
Advisory URL: https://access.redhat.com/errata/RHSA-2013:1080.html
Issue date: 2013-07-16

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 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%20covered

Topics Covered

security advisory denial of service security issue kernel update bug fix moderate severity Red Hat OpenStack

Relevant Releases Architectures

OpenStack 3 - noarch, x86_64

Bugs Fixed

920499 - CVE-2013-0914 Kernel: sa_restorer information leak

920783 - CVE-2013-1848 kernel: ext3: format string issues

922353 - CVE-2012-6548 Kernel: udf: information leak on export

924689 - CVE-2013-2634 kernel: Information leak in the Data Center Bridging (DCB) component

924690 - CVE-2013-2635 kernel: Information leak in the RTNETLINK component

952197 - CVE-2013-3301 Kernel: tracing: NULL pointer dereference

955216 - CVE-2013-3222 Kernel: atm: update msg_namelen in vcc_recvmsg()

955599 - CVE-2013-3224 Kernel: Bluetooth: possible info leak in bt_sock_recvmsg()

955649 - CVE-2013-3225 Kernel: Bluetooth: RFCOMM - missing msg_namelen update in rfcomm_sock_recvmsg

968484 - CVE-2013-2128 Kernel: net: oops from tcp_collapse() when using splice(2)

969518 - CVE-2013-2852 kernel: b43: format string leaking into error msgs

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