USN-3188-1: Linux kernel vulnerability

03 February 2017

The system could be made to crash if it received specially crafted network traffic.

Releases

Packages

  • linux - Linux kernel

Details

Andrey Konovalov discovered that the SCTP implementation in the Linux
kernel improperly handled validation of incoming data. A remote attacker
could use this to cause a denial of service (system crash).

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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

Related notices

  • USN-3161-4: linux-image-snapdragon, linux-snapdragon, linux-image-4.4.0-1042-snapdragon
  • USN-3161-1: linux-image-4.4.0-57-lowlatency, linux-image-generic, linux-image-powerpc64-emb, linux-image-4.4.0-57-powerpc-smp, linux-image-lowlatency, linux-image-powerpc-smp, linux, linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-generic, linux-image-4.4.0-57-powerpc64-emb, linux-image-powerpc-e500mc, linux-image-powerpc64-smp, linux-image-4.4.0-57-powerpc-e500mc, linux-image-generic-lpae, linux-image-4.4.0-57-powerpc64-smp
  • USN-3161-2: linux-lts-xenial, linux-image-4.4.0-57-lowlatency, linux-image-powerpc64-smp-lts-xenial, linux-image-lowlatency-lts-xenial, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-57-powerpc-smp, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-powerpc64-emb, linux-image-4.4.0-57-generic, linux-image-powerpc-e500mc-lts-xenial, linux-image-powerpc64-emb-lts-xenial, linux-image-generic-lts-xenial, linux-image-4.4.0-57-powerpc-e500mc, linux-image-4.4.0-57-powerpc64-smp
  • USN-3161-3: linux-image-4.4.0-1038-raspi2, linux-image-raspi2, linux-raspi2
  • USN-3187-2: linux-image-3.2.0-1499-omap4, linux-ti-omap4, linux-image-omap4
  • USN-3162-1: linux-image-generic, linux-image-4.8.0-32-generic, linux-image-powerpc64-emb, linux-image-lowlatency, linux-image-4.8.0-32-powerpc-e500mc, linux-image-4.8.0-32-powerpc-smp, linux-image-4.8.0-32-generic-lpae, linux, linux-image-powerpc-smp, linux-image-powerpc-e500mc, linux-image-4.8.0-32-lowlatency, linux-image-generic-lpae, linux-image-4.8.0-32-powerpc64-emb
  • USN-3187-1: linux-image-3.2.0-121-generic, linux-image-3.2.0-121-omap, linux-image-omap, linux-image-generic, linux-image-highbank, linux-image-3.2.0-121-powerpc-smp, linux-image-virtual, linux, linux-image-3.2.0-121-highbank, linux-image-powerpc64-smp, linux-image-3.2.0-121-generic-pae, linux-image-3.2.0-121-powerpc64-smp, linux-image-generic-pae, linux-image-powerpc-smp, linux-image-3.2.0-121-virtual
  • USN-3162-2: linux-image-raspi2, linux-image-4.8.0-1021-raspi2, linux-raspi2
  • USN-3188-2: linux-image-generic-lts-trusty, linux-image-generic-lpae-lts-trusty, linux-lts-trusty, linux-image-3.13.0-108-generic-lpae, linux-image-3.13.0-108-generic