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Ubuntu 14.04 LTS Security Advisory USN-3849-1: Kernel Issues

ubuntu
Calendar Grey December 20, 2018
Dist Ubuntu Esm H88
=========================================================================Ubuntu Security Notice USN-
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

Details:

It was discovered that a NULL pointer dereference existed in the keyring

subsystem of the Linux kernel. A local attacker could use this to cause a

denial of service (system crash). (CVE-2017-2647)

It was discovered that a race condition existed in the raw MIDI driver for

the Linux kernel, leading to a double free vulnerability. A local attacker

could use this to cause a denial of service (system crash) or possibly

execute arbitrary code. (CVE-2018-10902)

It was discovered that an integer overrun vulnerability existed in the

POSIX timers implementation in the Linux kernel. A local attacker could use

this to cause a denial of service. (CVE-2018-12896)

Noam Rathaus discovered that a use-after-free vulnerability existed in the

Infiniband implementation in the Linux kernel. An attacker could use this

to cause a denial of service (system crash). (CVE-2018-14734)

It was disc...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel local attack

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-3.13.0-164-generic  3.13.0-164.214
  linux-image-3.13.0-164-generic-lpae  3.13.0-164.214
  linux-image-3.13.0-164-lowlatency  3.13.0-164.214
  linux-image-3.13.0-164-powerpc-e500  3.13.0-164.214
  linux-image-3.13.0-164-powerpc-e500mc  3.13.0-164.214
  linux-image-3.13.0-164-powerpc-smp  3.13.0-164.214
  linux-image-3.13.0-164-powerpc64-emb  3.13.0-164.214
  linux-image-3.13.0-164-powerpc64-smp  3.13.0-164.214
  linux-image-generic             3.13.0.164.174
  linux-image-generic-lpae        3.13.0.164.174
  linux-image-lowlatency          3.13.0.164.174
  linux-image-powerpc-e500        3.13.0.164.174
  linux-image-powerpc-e500mc      3.13.0.164.174
  linux-image-powerpc-smp         3.13.0.164.174
  linux-image-powerpc64-emb       3.13.0.164.174
  linux-image-powerpc64-smp       3.13.0.164.174

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-3849-1

CVE-2017-2647, CVE-2018-10902, CVE-2018-12896, CVE-2018-14734,

CVE-2018-16276, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710

Severity
important
Lowest
Low
Medium
High
Critical

December 20, 2018

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu kernel local attack

Package Information

https://launchpad.net/ubuntu/+source/linux/3.13.0-164.214

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