USN-2153-1: initramfs-tools vulnerability

Ubuntu Security Notice USN-2153-1

24th March, 2014

initramfs-tools vulnerability

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

  • Ubuntu 12.10
  • Ubuntu 12.04 LTS

Summary

initramfs-tools used incorrect mount options.

Software description

  • initramfs-tools - tools for generating an initramfs

Details

Kees Cook discovered that initramfs-tools incorrectly mounted /run without
the noexec option, contrary to expected behaviour.

Update instructions

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

Ubuntu 12.10:
initramfs-tools 0.103ubuntu0.2.2
Ubuntu 12.04 LTS:
initramfs-tools 0.99ubuntu13.5

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

LP: 1152744