USN-2282-1: Linux kernel vulnerabilities

16 July 2014

Several security issues were fixed in the kernel.



  • linux - Linux kernel


Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol
(PPP) when used with the Layer Two Tunneling Protocol (L2TP). A local user
could exploit this flaw to gain administrative privileges. (CVE-2014-4943)

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). (CVE-2014-3917)

Update instructions

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

Ubuntu 10.04

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.

Related notices

  • USN-2287-1: linux-image-3.11.0-26-generic, linux-lts-saucy, linux-image-3.11.0-26-generic-lpae
  • USN-2290-1: linux-image-3.13.0-32-generic-lpae, linux, linux-image-3.13.0-32-powerpc-e500, linux-image-3.13.0-32-powerpc-smp, linux-image-3.13.0-32-powerpc64-emb, linux-image-3.13.0-32-generic, linux-image-3.13.0-32-lowlatency, linux-image-3.13.0-32-powerpc64-smp, linux-image-3.13.0-32-powerpc-e500mc
  • USN-2314-1: linux, linux-image-3.13.0-33-generic-lpae, linux-image-3.13.0-33-generic, linux-image-3.13.0-33-powerpc-smp, linux-image-3.13.0-33-powerpc64-smp, linux-image-3.13.0-33-powerpc64-emb, linux-image-3.13.0-33-lowlatency, linux-image-3.13.0-33-powerpc-e500mc, linux-image-3.13.0-33-powerpc-e500
  • USN-2286-1: linux-image-3.8.0-44-generic, linux-lts-raring
  • USN-2335-1: linux-image-3.2.0-1452-omap4, linux-ti-omap4
  • USN-2334-1: linux, linux-image-3.2.0-68-omap, linux-image-3.2.0-68-powerpc64-smp, linux-image-3.2.0-68-powerpc-smp, linux-image-3.2.0-68-generic-pae, linux-image-3.2.0-68-generic, linux-image-3.2.0-68-virtual, linux-image-3.2.0-68-highbank
  • USN-2289-1: linux-image-3.11.0-26-generic, linux, linux-image-3.11.0-26-generic-lpae
  • USN-2285-1: linux-image-3.5.0-54-generic, linux-lts-quantal
  • USN-2288-1: linux-image-3.13.0-32-generic-lpae, linux-lts-trusty, linux-image-3.13.0-32-generic
  • USN-2313-1: linux-image-3.13.0-33-generic, linux-lts-trusty, linux-image-3.13.0-33-generic-lpae
  • USN-2284-1: linux-ti-omap4, linux-image-3.2.0-1451-omap4
  • USN-2283-1: linux-image-3.2.0-67-powerpc-smp, linux-image-3.2.0-67-powerpc64-smp, linux, linux-image-3.2.0-67-highbank, linux-image-3.2.0-67-omap, linux-image-3.2.0-67-generic, linux-image-3.2.0-67-virtual, linux-image-3.2.0-67-generic-pae
  • USN-2281-1: linux-image-2.6.32-368-ec2, linux-ec2