USN-2660-1: Linux kernel vulnerability

07 July 2015

The system could be made to expose sensitive information over the local applications.

Releases

Packages

  • linux - Linux kernel

Details

A race condition was discovered in the Linux kernel's file_handle size
verification. A local user could exploit this flaw to read potentially
sensative memory locations.

Update instructions

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

Ubuntu 12.04

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. 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.

References

Related notices

  • USN-2661-1: linux-image-3.2.0-1467-omap4, linux-ti-omap4
  • USN-2662-1: linux-lts-trusty, linux-image-3.13.0-57-generic, linux-image-3.13.0-57-generic-lpae
  • USN-2663-1: linux-image-3.13.0-57-powerpc-e500, linux-image-3.13.0-57-powerpc-smp, linux-image-3.13.0-57-generic-lpae, linux-image-3.13.0-57-powerpc64-emb, linux, linux-image-3.13.0-57-lowlatency, linux-image-3.13.0-57-powerpc64-smp, linux-image-3.13.0-57-generic, linux-image-3.13.0-57-powerpc-e500mc
  • USN-2664-1: linux-image-3.16.0-43-powerpc64-smp, linux-image-3.16.0-43-powerpc-e500mc, linux-image-3.16.0-43-generic-lpae, linux-image-3.16.0-43-generic, linux-image-3.16.0-43-powerpc64-emb, linux-lts-utopic, linux-image-3.16.0-43-powerpc-smp, linux-image-3.16.0-43-lowlatency
  • USN-2665-1: linux-image-3.19.0-22-powerpc64-smp, linux-image-3.19.0-22-generic, linux-image-3.19.0-22-powerpc64-emb, linux-image-3.19.0-22-lowlatency, linux-image-3.19.0-22-powerpc-e500mc, linux-image-3.19.0-22-powerpc-smp, linux-image-3.19.0-22-generic-lpae, linux-lts-vivid
  • USN-2666-1: linux-image-3.16.0-43-powerpc64-smp, linux-image-3.16.0-43-powerpc-e500mc, linux-image-3.16.0-43-generic-lpae, linux-image-3.16.0-43-generic, linux-image-3.16.0-43-powerpc64-emb, linux, linux-image-3.16.0-43-powerpc-smp, linux-image-3.16.0-43-lowlatency
  • USN-2667-1: linux-image-3.19.0-22-powerpc64-smp, linux-image-3.19.0-22-generic, linux-image-3.19.0-22-powerpc64-emb, linux-image-3.19.0-22-lowlatency, linux, linux-image-3.19.0-22-powerpc-e500mc, linux-image-3.19.0-22-powerpc-smp, linux-image-3.19.0-22-generic-lpae