USN-2911-1: Linux kernel vulnerability

USN-2911-1: Linux kernel vulnerability

Ubuntu Security Notice USN-2911-1

22nd February, 2016

linux vulnerability

A security issue affects these releases of Ubuntu and its
derivatives:

  • Ubuntu 12.04 LTS

Summary

The system could be made to crash under certain conditions.

Software description

  • linux
    – Linux kernel

Details

It was discovered that the Linux kernel keyring subsystem contained a race
between read and revoke operations. A local attacker could use this to
cause a denial of service (system crash).

Update instructions

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

Ubuntu 12.04 LTS:
linux-image-3.2.0-99-generic-pae

3.2.0-99.139
linux-image-3.2.0-99-powerpc64-smp

3.2.0-99.139
linux-image-3.2.0-99-generic

3.2.0-99.139
linux-image-3.2.0-99-virtual

3.2.0-99.139
linux-image-3.2.0-99-highbank

3.2.0-99.139
linux-image-3.2.0-99-powerpc-smp

3.2.0-99.139
linux-image-3.2.0-99-omap

3.2.0-99.139

To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.

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

CVE-2015-7550

Source: USN-2911-1: Linux kernel vulnerability

About KENNETH 19688 Articles
지락문화예술공작단

Be the first to comment

Leave a Reply

Your email address will not be published.


*


이 사이트는 스팸을 줄이는 아키스밋을 사용합니다. 댓글이 어떻게 처리되는지 알아보십시오.