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Ubuntu 14.04 ESM: USN-4227-2 Critical: Linux Kernel Buffer Overflow

ubuntu
Calendar Grey January 7, 2020
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-azure: Linux kernel for Microsoft Azure Cloud systems

- linux-meta-azure: Complete Linux kernel for Azure systems.

- linux-signed-azure: Signed kernel image azure

Details:

USN-4227-1 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 a heap-based buffer overflow existed in the Marvell

WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could

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

arbitrary code. (CVE-2019-14895, CVE-2019-14901)

It was discovered that a heap-based buffer overflow existed in the Marvell

Libertas WLAN Driver for the Linux kernel. A physically proximate attacker

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

execute arbitrary code. (CVE-2019-14896, ...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Linux kernel heap-based Azure

Update Instructions

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

Ubuntu 14.04 ESM:
  linux-image-4.15.0-1066-azure   4.15.0-1066.71~14.04.1
  linux-image-azure               4.15.0.1066.52

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-4227-2

https://ubuntu.com/security/notices/USN-4227-1

CVE-2019-14895, CVE-2019-14896, CVE-2019-14897, CVE-2019-14901,

CVE-2019-16231, CVE-2019-16233, CVE-2019-18660, CVE-2019-19045,

CVE-2019-19052, CVE-2019-19083, CVE-2019-19524, CVE-2019-19529,

CVE-2019-19534, CVE-2019-19807

Severity
critical
Lowest
Low
Medium
High
Critical

January 07, 2020

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow Linux kernel heap-based Azure

Package Information

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