USN-1929-1: Linux kernel vulnerability

20 August 2013

The system could be made to expose sensitive information.

Releases

Packages

  • linux - Linux kernel

Details

An information leak was discovered in the Linux kernel's fanotify
interface. A local user could exploit this flaw to obtain sensitive
information from kernel memory.

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-1930-1: linux-ti-omap4, linux-image-3.2.0-1436-omap4
  • USN-1931-1: linux-image-3.5.0-39-generic, linux-lts-quantal
  • USN-1932-1: linux-image-3.5.0-39-omap, linux-image-3.5.0-39-powerpc-smp, linux-image-3.5.0-39-generic, linux, linux-image-3.5.0-39-powerpc64-smp, linux-image-3.5.0-39-highbank
  • USN-1933-1: linux-image-3.5.0-231-omap4, linux-ti-omap4
  • USN-1934-1: linux-image-3.5.0-231-omap4, linux-ti-omap4
  • USN-1935-1: linux, linux-image-3.8.0-29-generic
  • USN-1936-1: linux-lts-raring, linux-image-3.8.0-29-generic