USN-2284-1: Linux kernel (OMAP4) vulnerabilities

16 July 2014

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

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)

Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on
x86_64 processors. An attacker could exploit this flaw to cause a denial of
service (System Crash) or potential gain administrative privileges.
(CVE-2014-4699)

Michael S. Tsirkin discovered an information leak in the Linux kernel's
segmentation of skbs when using the zerocopy feature of vhost-net. A local
attacker could exploit this flaw to gain potentially sensitive information
from kernel memory. (CVE-2014-0131)

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.

Related notices

  • USN-2287-1: linux-lts-saucy, linux-image-3.11.0-26-generic, linux-image-3.11.0-26-generic-lpae
  • USN-2290-1: linux-image-3.13.0-32-powerpc-e500mc, linux, linux-image-3.13.0-32-generic-lpae, linux-image-3.13.0-32-powerpc-e500, linux-image-3.13.0-32-generic, linux-image-3.13.0-32-powerpc64-smp, linux-image-3.13.0-32-powerpc-smp, linux-image-3.13.0-32-powerpc64-emb, linux-image-3.13.0-32-lowlatency
  • USN-2267-1: linux-image-2.6.32-366-ec2, linux-ec2
  • USN-2286-1: linux-lts-raring, linux-image-3.8.0-44-generic
  • USN-2282-1: linux-image-2.6.32-64-server, linux-image-2.6.32-64-sparc64, linux-image-2.6.32-64-generic-pae, linux, linux-image-2.6.32-64-powerpc64-smp, linux-image-2.6.32-64-powerpc, linux-image-2.6.32-64-386, linux-image-2.6.32-64-preempt, linux-image-2.6.32-64-generic, linux-image-2.6.32-64-powerpc-smp, linux-image-2.6.32-64-lpia, linux-image-2.6.32-64-ia64, linux-image-2.6.32-64-virtual, linux-image-2.6.32-64-versatile, linux-image-2.6.32-64-sparc64-smp
  • USN-2272-1: linux-image-3.13.0-30-generic-lpae, linux-lts-trusty, linux-image-3.13.0-30-generic
  • USN-2269-1: linux-lts-quantal, linux-image-3.5.0-52-generic
  • USN-2270-1: linux-lts-raring, linux-image-3.8.0-42-generic
  • USN-2268-1: linux, linux-image-3.2.0-65-generic, linux-image-3.2.0-65-highbank, linux-image-3.2.0-65-powerpc-smp, linux-image-3.2.0-65-powerpc64-smp, linux-image-3.2.0-65-virtual, linux-image-3.2.0-65-generic-pae, linux-image-3.2.0-65-omap
  • USN-2273-1: linux-image-3.11.0-24-generic, linux-image-3.11.0-24-generic-lpae, linux
  • USN-2274-1: linux-image-3.13.0-30-powerpc-e500mc, linux, linux-image-3.13.0-30-powerpc-smp, linux-image-3.13.0-30-powerpc-e500, linux-image-3.13.0-30-generic-lpae, linux-image-3.13.0-30-lowlatency, linux-image-3.13.0-30-generic, linux-image-3.13.0-30-powerpc64-emb, linux-image-3.13.0-30-powerpc64-smp
  • USN-2289-1: linux, linux-image-3.11.0-26-generic, linux-image-3.11.0-26-generic-lpae
  • USN-2285-1: linux-image-3.5.0-54-generic, linux-lts-quantal
  • USN-2266-1: linux-image-2.6.32-62-sparc64-smp, linux, linux-image-2.6.32-62-powerpc-smp, linux-image-2.6.32-62-sparc64, linux-image-2.6.32-62-powerpc, linux-image-2.6.32-62-generic-pae, linux-image-2.6.32-62-ia64, linux-image-2.6.32-62-server, linux-image-2.6.32-62-386, linux-image-2.6.32-62-virtual, linux-image-2.6.32-62-preempt, linux-image-2.6.32-62-generic, linux-image-2.6.32-62-lpia, linux-image-2.6.32-62-versatile, linux-image-2.6.32-62-powerpc64-smp
  • USN-2288-1: linux-image-3.13.0-32-generic, linux-image-3.13.0-32-generic-lpae, linux-lts-trusty
  • USN-2283-1: linux, linux-image-3.2.0-67-highbank, linux-image-3.2.0-67-omap, linux-image-3.2.0-67-virtual, linux-image-3.2.0-67-generic-pae, linux-image-3.2.0-67-powerpc-smp, linux-image-3.2.0-67-generic, linux-image-3.2.0-67-powerpc64-smp
  • USN-2271-1: linux-image-3.11.0-24-generic, linux-image-3.11.0-24-generic-lpae, linux-lts-saucy
  • USN-2281-1: linux-ec2, linux-image-2.6.32-368-ec2