Issued:
2013-07-16
Updated:
2013-07-16

RHSA-2013:1080 - Security Advisory

Synopsis

Moderate: kernel security and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

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 moderate
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.

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 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://rhn.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.

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/en-US/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.

Affected Products

  • Red Hat OpenStack grizzly x86_64

Fixes

  • BZ - 920499 - CVE-2013-0914 Kernel: sa_restorer information leak
  • BZ - 920783 - CVE-2013-1848 kernel: ext3: format string issues
  • BZ - 922353 - CVE-2012-6548 Kernel: udf: information leak on export
  • BZ - 924689 - CVE-2013-2634 kernel: Information leak in the Data Center Bridging (DCB) component
  • BZ - 924690 - CVE-2013-2635 kernel: Information leak in the RTNETLINK component
  • BZ - 952197 - CVE-2013-3301 Kernel: tracing: NULL pointer dereference
  • BZ - 955216 - CVE-2013-3222 Kernel: atm: update msg_namelen in vcc_recvmsg()
  • BZ - 955599 - CVE-2013-3224 Kernel: Bluetooth: possible info leak in bt_sock_recvmsg()
  • BZ - 955649 - CVE-2013-3225 Kernel: Bluetooth: RFCOMM - missing msg_namelen update in rfcomm_sock_recvmsg
  • BZ - 968484 - CVE-2013-2128 Kernel: net: oops from tcp_collapse() when using splice(2)
  • BZ - 969518 - CVE-2013-2852 kernel: b43: format string leaking into error msgs

CVEs

References

Red Hat OpenStack grizzly

SRPM
kernel-2.6.32-358.114.1.openstack.el6.src.rpm SHA-256: 6535fc00b84e90eb0ec88c990b5af20309fc8a0e06340614635e2832f3b2484b
x86_64
kernel-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 3508c3af6ef9875658199215dcfd4fecab9bcb6eda4d4fa29e0e4ee9a8e7ea87
kernel-debug-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: bc15052cb22308f1d3f0efd9f963da5a68610544c2ebbd67b6a94daee62aa3c9
kernel-debug-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 81597c0e838d77e597b03e7d1cd78ed341f2a77c6a0e744f5bca3507c9fe9218
kernel-debug-devel-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: e37673b08db80cd6b565c699f434a4e1c80dd9ddd571ae21bf62862c06894bdb
kernel-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 3779fa7f9bd837917186c0ca242fa9f4d3c1d14b62a865cfcbd1920e8e78a68c
kernel-debuginfo-common-x86_64-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 04c4b49573ed626a5a7f03392f05fa0a88e3a68c1222c99db77ff3a816659b97
kernel-devel-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 026834dc8479bc937805ac75e63ce852f8c977b1da502a301af8ba1c435decaf
kernel-doc-2.6.32-358.114.1.openstack.el6.noarch.rpm SHA-256: e5e254f2520cfdfdb5595f80e7749afc7dcc2fca8c31f50595226b26ca5e1296
kernel-firmware-2.6.32-358.114.1.openstack.el6.noarch.rpm SHA-256: 158bc83e373f30065fde3332553883a674736b3a6e2bc73a0c88cd6a2d0d57c2
kernel-headers-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: f6791daf6d34f6f9a60ca7953d774503287958ca58f16a03305d0514325e901c
perf-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: c9d49a54f828b75ab1578566056132234c56fee3bd8f84127b14cf2207199c9b
perf-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 937e5a5fcda90319df31789f71fefe46da8297358f525adbecb019262543670e
python-perf-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 4e9be07ad7d0c1a430f0d63537f418675db13d16463d59e1d4571c0e6989855f
python-perf-debuginfo-2.6.32-358.114.1.openstack.el6.x86_64.rpm SHA-256: 868ee065068f2b9ef7e6c92f030eca7fe5de718ef0a72635e6ea1654965eead8

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