USN-1468-1: Linux kernel vulnerability

Ubuntu Security Notice USN-1468-1

12th June, 2012

linux vulnerability

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

  • Ubuntu 10.04 LTS

Summary

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

Software description

  • linux - Linux kernel

Details

Schacher Raindel discovered a flaw in the Linux kernel's memory handling
when hugetlb is enabled. An unprivileged local attacker could exploit this
flaw to cause a denial of service and potentially gain higher privileges.

Update instructions

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

Ubuntu 10.04 LTS:
linux-image-2.6.32-41-server 2.6.32-41.90
linux-image-2.6.32-41-preempt 2.6.32-41.90
linux-image-2.6.32-41-ia64 2.6.32-41.90
linux-image-2.6.32-41-generic-pae 2.6.32-41.90
linux-image-2.6.32-41-386 2.6.32-41.90
linux-image-2.6.32-41-generic 2.6.32-41.90
linux-image-2.6.32-41-powerpc 2.6.32-41.90
linux-image-2.6.32-41-sparc64 2.6.32-41.90
linux-image-2.6.32-41-sparc64-smp 2.6.32-41.90
linux-image-2.6.32-41-powerpc-smp 2.6.32-41.90
linux-image-2.6.32-41-virtual 2.6.32-41.90
linux-image-2.6.32-41-powerpc64-smp 2.6.32-41.90
linux-image-2.6.32-41-versatile 2.6.32-41.90
linux-image-2.6.32-41-lpia 2.6.32-41.90

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.

References

CVE-2012-2133