Alerts This Week
Warning Icon 1 485
Alerts This Week
Warning Icon 1 485

Ubuntu 12.04 ESM USN-3338-2 Critical: Kernel Regression Fix

ubuntu
Calendar Grey June 29, 2017
Dist Ubuntu Esm H88
Numerous concerns resolved within the Linux kernel need focus for Ubuntu 12.04 ESM users; tackling setbacks and enhancements.
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-3338-1 fixed vulnerabilities in the Linux kernel. However, the fix

for CVE-2017-1000364 introduced regressions for some Java applications.

This update addresses the issue. We apologize for the inconvenience.

Original advisory details:

It was discovered that the stack guard page for processes in the Linux

kernel was not sufficiently large enough to prevent overlapping with the

heap. An attacker could leverage this with another vulnerability to execute

arbitrary code and gain administrative privileges (CVE-2017-1000364)

Jesse Hertz and Tim Newsham discovered that the Linux netfilter

implementation did not correctly perform validation when handling 32 bit

compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local

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

crash) or execute arbitrary code with administrative privileges.

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical issue kernel update ubuntu linux fix

Update Instructions

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

Ubuntu 12.04 ESM:
  linux-image-3.2.0-129-generic   3.2.0-129.174
  linux-image-3.2.0-129-generic-pae  3.2.0-129.174
  linux-image-3.2.0-129-highbank  3.2.0-129.174
  linux-image-3.2.0-129-omap      3.2.0-129.174
  linux-image-3.2.0-129-powerpc-smp  3.2.0-129.174
  linux-image-3.2.0-129-powerpc64-smp  3.2.0-129.174
  linux-image-3.2.0-129-virtual   3.2.0-129.174
  linux-image-generic             3.2.0.129.143
  linux-image-generic-pae         3.2.0.129.143
  linux-image-highbank            3.2.0.129.143
  linux-image-omap                3.2.0.129.143
  linux-image-powerpc             3.2.0.129.143
  linux-image-powerpc-smp         3.2.0.129.143
  linux-image-powerpc64-smp       3.2.0.129.143
  linux-image-virtual             3.2.0.129.143

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-3338-1

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1699772

Severity
critical
Lowest
Low
Medium
High
Critical

June 29, 2017

Topics%20covered

Topics Covered

security advisory denial of service critical issue kernel update ubuntu linux fix

Package Information

Get the latest News and Insights

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

Your message here