Issued:
2013-09-03
Updated:
2013-09-03

RHSA-2013:1195 - Security Advisory

Synopsis

Important: kernel security and bug fix update

Type/Severity

Security Advisory: Important

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
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.

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.

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.

Affected Products

  • Red Hat OpenStack grizzly x86_64

Fixes

  • BZ - 922414 - CVE-2012-6544 Kernel: Bluetooth: HCI & L2CAP information leaks
  • BZ - 971309 - CVE-2013-2146 Kernel: perf/x86: offcore_rsp valid mask for SNB/IVB
  • BZ - 976562 - CVE-2013-2206 kernel: sctp: duplicate cookie handling NULL pointer dereference
  • BZ - 979936 - CVE-2013-2224 kernel: net: IP_REPOPTS invalid free
  • BZ - 981220 - CVE-2013-2237 Kernel: net: af_key: initialize satype in key_notify_policy_flush
  • BZ - 981552 - CVE-2013-2232 Kernel: ipv6: using ipv4 vs ipv6 structure during routing lookup in sendmsg

CVEs

References

Red Hat OpenStack grizzly

SRPM
kernel-2.6.32-358.118.1.openstack.el6.src.rpm SHA-256: b643a498d2246cfef38021029ed39010d2831ce75443413aaaf664f21e104bff
x86_64
kernel-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 839ed666e61686a72d1ecb05282c7951ae2b7a9ab8655c5c8d7852d7c3fad869
kernel-debug-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 60a89361decffa598cff90de55d5467ac8670ca96cf9810f080587a486465ccf
kernel-debug-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 2a6a76c6d359c358b6a7a07c84d37075bb26191245ef7a6728416c5327626ef5
kernel-debug-devel-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 7bd737cb84a1090e91ddc692b61e3fea818f8b80908ee367a82cc2222471933d
kernel-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 571661a7f55deb148d8cdf94374e9f39d62bcc8d762cc0e924435a8553ea5322
kernel-debuginfo-common-x86_64-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 029a3e1d9c1d71a7e50eff892e02ba56ac5bffd69829c51d99e5078defca6640
kernel-devel-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 6bc2a9efb8cf01ad87c0ff932672bb0cdf7f783eae41f66a4c7c1f16b9edeeb3
kernel-doc-2.6.32-358.118.1.openstack.el6.noarch.rpm SHA-256: 5473051ca2b159617947d22ec08aaa2d419c817caccd2d65e951b405c9ae5616
kernel-firmware-2.6.32-358.118.1.openstack.el6.noarch.rpm SHA-256: cf2db582b86ad31d186487e3ccd02e95e024c0a459ca052bb609b79000f2c9cb
kernel-headers-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: a194d9ef4ffeab19d03418c598f5b7bf614803b1ba222fc5ce86515a769c38b0
perf-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: ebbdd7ba1c65506c7e99ff81423c2df40163c9a47d90180a1418e4e7d326cac5
perf-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: ba4c6102ef1f1d3b427195a734ba48a937b81b9562a43f1a038cbf231f5fad80
python-perf-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: 011219de9959a187e85faed6a1eab5060521391cbb982b6d53c4811f5081e02e
python-perf-debuginfo-2.6.32-358.118.1.openstack.el6.x86_64.rpm SHA-256: ecee0044d42cf6bfb4f6b9de1e7d006017fb932c210082b5c67a212909107b5d

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