USN-2314-1: Linux kernel vulnerability

13 August 2014

The system could be made to crash under certain conditions.

Releases

Packages

Details

An flaw was discovered in the Linux kernel's audit subsystem when auditing
certain syscalls. A local attacker could exploit this flaw to obtain
potentially sensitive single-bit values from kernel memory or cause a
denial of service (OOPS).

Update instructions

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

Ubuntu 14.04

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-2313-1: linux-image-3.13.0-33-generic-lpae, linux-lts-trusty, linux-image-3.13.0-33-generic
  • USN-2287-1: linux-image-3.11.0-26-generic-lpae, linux-image-3.11.0-26-generic, linux-lts-saucy
  • USN-2286-1: linux-image-3.8.0-44-generic, linux-lts-raring
  • USN-2282-1: linux-image-2.6.32-64-lpia, linux-image-2.6.32-64-powerpc-smp, linux-image-2.6.32-64-sparc64, linux-image-2.6.32-64-virtual, linux-image-2.6.32-64-ia64, linux-image-2.6.32-64-powerpc, linux-image-2.6.32-64-powerpc64-smp, linux-image-2.6.32-64-sparc64-smp, linux-image-2.6.32-64-server, linux-image-2.6.32-64-generic, linux-image-2.6.32-64-preempt, linux, linux-image-2.6.32-64-386, linux-image-2.6.32-64-versatile, linux-image-2.6.32-64-generic-pae
  • USN-2335-1: linux-image-3.2.0-1452-omap4, linux-ti-omap4
  • USN-2281-1: linux-ec2, linux-image-2.6.32-368-ec2
  • USN-2334-1: linux-image-3.2.0-68-generic-pae, linux-image-3.2.0-68-omap, linux, linux-image-3.2.0-68-powerpc-smp, linux-image-3.2.0-68-highbank, linux-image-3.2.0-68-virtual, linux-image-3.2.0-68-generic, linux-image-3.2.0-68-powerpc64-smp
  • USN-2289-1: linux-image-3.11.0-26-generic-lpae, linux-image-3.11.0-26-generic, linux
  • USN-2285-1: linux-lts-quantal, linux-image-3.5.0-54-generic