USN-2259-1: Linux kernel vulnerabilities

27 June 2014

Several security issues were fixed in the kernel.

Releases

Packages

  • linux - Linux kernel

Details

Salva Peiró discovered an information leak in the Linux kernel's media-
device driver. A local attacker could exploit this flaw to obtain sensitive
information from kernel memory. (CVE-2014-1739)

A bounds check error was discovered in the socket filter subsystem of the
Linux kernel. A local user could exploit this flaw to cause a denial of
service (system crash) via crafted BPF instructions. (CVE-2014-3144)

A remainder calculation error was discovered in the socket filter subsystem
of the Linux kernel. A local user could exploit this flaw to cause a denial
of service (system crash) via crafted BPF instructions. (CVE-2014-3145)

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-2285-1: linux-lts-quantal, linux-image-3.5.0-54-generic
  • USN-2264-1: linux-image-3.11.0-24-generic-lpae, linux, linux-image-3.11.0-24-generic
  • USN-2288-1: linux-image-3.13.0-32-generic-lpae, linux-lts-trusty, linux-image-3.13.0-32-generic
  • USN-2263-1: linux-ti-omap4, linux-image-3.2.0-1450-omap4
  • USN-2261-1: linux-image-3.11.0-24-generic-lpae, linux-lts-saucy, linux-image-3.11.0-24-generic
  • USN-2251-1: linux-image-2.6.32-62-powerpc-smp, linux-image-2.6.32-62-ia64, linux-image-2.6.32-62-sparc64-smp, linux-image-2.6.32-62-lpia, linux-image-2.6.32-62-server, linux-image-2.6.32-62-386, linux-image-2.6.32-62-generic, linux-image-2.6.32-62-versatile, linux-image-2.6.32-62-powerpc, linux, linux-image-2.6.32-62-virtual, linux-image-2.6.32-62-preempt, linux-image-2.6.32-62-generic-pae, linux-image-2.6.32-62-sparc64, linux-image-2.6.32-62-powerpc64-smp
  • USN-2252-1: linux-ec2, linux-image-2.6.32-366-ec2
  • USN-2290-1: linux-image-3.13.0-32-powerpc64-smp, linux-image-3.13.0-32-powerpc-e500mc, linux-image-3.13.0-32-powerpc-smp, linux-image-3.13.0-32-generic, linux, linux-image-3.13.0-32-lowlatency, linux-image-3.13.0-32-generic-lpae, linux-image-3.13.0-32-powerpc-e500, linux-image-3.13.0-32-powerpc64-emb
  • USN-2262-1: linux-image-3.5.0-52-generic, linux-lts-quantal
  • USN-2286-1: linux-lts-raring, linux-image-3.8.0-44-generic