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Ubuntu 14.04: USN-3847-3 Important: Azure Kernel Vulnerabilities

ubuntu
Calendar Grey December 20, 2018
Dist Ubuntu Esm H88
Ubuntu 16.04 LTS kernel enhancements tackle various vulnerabilities impacting Google Cloud platforms.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-azure: Linux kernel for Microsoft Azure Cloud systems

Details:

USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04

LTS. This update provides the corresponding updates for the Linux

kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 LTS.

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 (sy...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue kernel update ubuntu linux-azure

Update Instructions

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

Ubuntu 14.04 LTS:
  linux-image-4.15.0-1036-azure   4.15.0-1036.38~14.04.2
  linux-image-azure               4.15.0.1036.23

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-3847-3

https://ubuntu.com/security/notices/USN-3847-1

CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276,

CVE-2018-18445, CVE-2018-18690, CVE-2018-18710

Severity
important
Lowest
Low
Medium
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Critical

December 20, 2018

Topics%20covered

Topics Covered

security advisory denial of service security issue kernel update ubuntu linux-azure

Package Information

https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1036.38~14.04.2

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