1. Ubuntu Security Notices
  2. USN-1825-1

USN-1825-1: Linux kernel vulnerability

Publication date

16 May 2013

Overview

The system could be made to run programs as an administrator.

Releases

Packages

Details

An flaw was discovered in the Linux kernel's perf_events interface. A local
user could exploit this flaw to escalate privileges on the system.

An flaw was discovered in the Linux kernel's perf_events interface. A local
user could exploit this flaw to escalate privileges on the system.

Update instructions

After a standard system update you need to reboot your computer to make all the necessary changes.

Learn more about how to get the fixes.

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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.

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

Ubuntu Release Package Version
12.04 precise linux-image-3.2.0-43-powerpc64-smp –  3.2.0-43.68
linux-image-3.2.0-43-powerpc-smp –  3.2.0-43.68
linux-image-3.2.0-43-generic-pae –  3.2.0-43.68
linux-image-3.2.0-43-virtual –  3.2.0-43.68
linux-image-3.2.0-43-highbank –  3.2.0-43.68
linux-image-3.2.0-43-omap –  3.2.0-43.68
linux-image-3.2.0-43-generic –  3.2.0-43.68

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References

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