USN-1469-1: Linux kernel (EC2) vulnerability

Ubuntu Security Notice USN-1469-1

12th June, 2012

linux-ec2 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-ec2 - Linux kernel for EC2

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-2.6.32-345-ec2 2.6.32-345.49

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