Alerts This Week
Warning Icon 1 758
Alerts This Week
Warning Icon 1 758

Ubuntu 14.04 ESM: USN-4287-2 Moderate: Kernel Memory Issues Identified

ubuntu
Calendar Grey February 18, 2020
Dist Ubuntu Esm H88
A range of vulnerabilities resolved in the linux-azure kernel for Ubuntu. Users encouraged to update for optimal system performance.
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-4287-1 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 ESM.

It was discovered that the Linux kernel did not properly clear data

structures on context switches for certain Intel graphics processors. A

local attacker could use this to expose sensitive information.

(CVE-2019-14615)

It was discovered that the Atheros 802.11ac wireless USB device driver in

the Linux kernel did not properly validate device metadata. A physically

proximate attacker could use this to cause a denial of service (system

crash). (CVE-2019-15099)

It was discovered that the HSA Linux kernel driver for AMD GPU devices did

not properly check for errors in certain situations, leading to a NULL

pointer dereference. A local atta...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information exposure kernel issue memory exhaustion linux-azure

Update Instructions

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

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1069-azure   4.15.0-1069.74~14.04.1
  linux-image-azure               4.15.0.1069.55

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-4287-2

https://ubuntu.com/security/notices/USN-4287-1

CVE-2019-14615, CVE-2019-15099, CVE-2019-15291, CVE-2019-16229,

CVE-2019-16232, CVE-2019-18683, CVE-2019-18786, CVE-2019-18809,

CVE-2019-18885, CVE-2019-19057, CVE-2019-19062, CVE-2019-19063,

CVE-2019-19071, CVE-2019-19078, CVE-2019-19082, CVE-2019-19227,

CVE-2019-19332, CVE-2019-19767, CVE-2019-19965, CVE-2019-20096,

CVE-2019-5108, CVE-2020-7053

February 18, 2020

Topics%20covered

Topics Covered

security advisory denial of service information exposure kernel issue memory exhaustion linux-azure

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here