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Ubuntu 12.04 ESM: USN-3445-2 Critical Kernel Updates for Security Issues

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Calendar Grey October 11, 2017
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Multiple vulnerabilities in the Linux kernel resolved in Ubuntu 12.04 ESM. Key patches and guidelines to boost system security.
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:

USN-3445-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04

LTS. This update provides the corresponding updates for the Linux

Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu

12.04 ESM.

Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation

in the Linux kernel contained a buffer overflow when handling fragmented

packets. A remote attacker could use this to possibly execute arbitrary

code with administrative privileges. (CVE-2016-8633)

Andrey Konovalov discovered that a divide-by-zero error existed in the TCP

stack implementation in the Linux kernel. A local attacker could use this

to cause a denial of service (system crash). (CVE-2017-14106)

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow critical ubuntu linux kernel

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.2.0-131-generic   3.2.0-131.177
  linux-image-3.2.0-131-generic-pae  3.2.0-131.177
  linux-image-3.2.0-131-highbank  3.2.0-131.177
  linux-image-3.2.0-131-omap      3.2.0-131.177
  linux-image-3.2.0-131-powerpc-smp  3.2.0-131.177
  linux-image-3.2.0-131-powerpc64-smp  3.2.0-131.177
  linux-image-3.2.0-131-virtual   3.2.0-131.177
  linux-image-generic             3.2.0.131.145
  linux-image-generic-pae         3.2.0.131.145
  linux-image-highbank            3.2.0.131.145
  linux-image-omap                3.2.0.131.145
  linux-image-powerpc-smp         3.2.0.131.145
  linux-image-powerpc64-smp       3.2.0.131.145

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-3445-2

https://ubuntu.com/security/notices/USN-3445-1

CVE-2016-8633, CVE-2017-14106

Severity
critical
Lowest
Low
Medium
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Critical

October 11, 2017

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow critical ubuntu linux kernel

Package Information

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