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==========================================================================
Ubuntu Security Notice USN-3071-1
August 29, 2016

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Kangjie Lu discovered an information leak in the Reliable Datagram Sockets
(RDS) implementation in the Linux kernel. A local attacker could use this
to obtain potentially sensitive information from kernel memory.
(CVE-2016-5244)

Yue Cao et al discovered a flaw in the TCP implementation's handling of
challenge acks in the Linux kernel. A remote attacker could use this to
cause a denial of service (reset connection) or inject content into an TCP
stream. (CVE-2016-5696)

Pengfei Wang discovered a race condition in the MIC VOP driver in the Linux
kernel. A local attacker could use this to cause a denial of service
(system crash) or obtain potentially sensitive information from kernel
memory. (CVE-2016-5728)

Cyril Bur discovered that on PowerPC platforms, the Linux kernel mishandled
transactional memory state on exec(). A local attacker could use this to
cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2016-5828)

It was discovered that a heap based buffer overflow existed in the USB HID
driver in the Linux kernel. A local attacker could use this cause a denial
of service (system crash) or possibly execute arbitrary code.
(CVE-2016-5829)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
  linux-image-3.13.0-95-generic   3.13.0-95.142
  linux-image-3.13.0-95-generic-lpae  3.13.0-95.142
  linux-image-3.13.0-95-lowlatency  3.13.0-95.142
  linux-image-3.13.0-95-powerpc-e500  3.13.0-95.142
  linux-image-3.13.0-95-powerpc-e500mc  3.13.0-95.142
  linux-image-3.13.0-95-powerpc-smp  3.13.0-95.142
  linux-image-3.13.0-95-powerpc64-emb  3.13.0-95.142
  linux-image-3.13.0-95-powerpc64-smp  3.13.0-95.142

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References:
  http://www.ubuntu.com/usn/usn-3071-1
  CVE-2016-5244, CVE-2016-5696, CVE-2016-5728, CVE-2016-5828,
  CVE-2016-5829

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.13.0-95.142


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