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Ubuntu 14.04 LTS USN-2931-1 Moderate: Kernel Denial of Service Threats

ubuntu
Calendar Grey March 14, 2016
Scroller Ubuntu
Several kernel-related vulnerabilities patched in Ubuntu 14.04 LTS with moderate impact on overall system reliability and cybersecurity protocols.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux-lts-utopic: Linux hardware enablement kernel from Utopic for Trusty

Details:

Ben Hawkes discovered that the Linux netfilter implementation did not

correctly perform validation when handling IPT_SO_SET_REPLACE events. A

local unprivileged attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code with administrative

privileges. (CVE-2016-3134)

It was discovered that the Linux kernel did not properly enforce rlimits

for file descriptors sent over UNIX domain sockets. A local attacker could

use this to cause a denial of service. (CVE-2013-4312)

It was discovered that a race condition existed when handling heartbeat-

timeout events in the SCTP implementation of the Linux kernel. A remote

attacker could use this to cause a denial of service. (CVE-2015-8767)

Andy Lutomirski discovered a race condition in the Linux kernel's

translation lookaside buffer (TLB) ha...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory moderate denial of service kernel system update ubuntu linux-lts-utopic

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.16.0-67-generic   3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-generic-lpae  3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-lowlatency  3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-powerpc-e500mc  3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-powerpc-smp  3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-powerpc64-emb  3.16.0-67.87~14.04.1
  linux-image-3.16.0-67-powerpc64-smp  3.16.0-67.87~14.04.1

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

https://ubuntu.com/security/notices/USN-2931-1

CVE-2013-4312, CVE-2015-8767, CVE-2016-2069, CVE-2016-2384,

CVE-2016-2543, CVE-2016-2544, CVE-2016-2545, CVE-2016-2546,

CVE-2016-2547, CVE-2016-2548, CVE-2016-2549, CVE-2016-3134

March 14, 2016

Topics%20covered

Topics Covered

security advisory moderate denial of service kernel system update ubuntu linux-lts-utopic

Package Information

https://launchpad.net/ubuntu/+source/linux-lts-utopic/3.16.0-67.87~14.04.1

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