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USN-3445-1: Linux kernel vulnerabilities

10 October 2017

Several security issues were fixed in the Linux kernel.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Releases

Packages

Details

Eyal Itkin discovered that the IP over IEEE 1394 (FireWire) implementation
in the Linux kernel contained a buffer overflow when handling fragmented
packets. A remote attacker could use this to possibly execute arbitrary
code with administrative privileges. (CVE-2016-8633)

Andrey Konovalov discovered that a divide-by-zero error existed in the TCP
stack implementation in the Linux kernel. A local attacker could use this
to cause a denial of service (system crash). (CVE-2017-14106)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

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.

Related notices

  • USN-3162-2: linux-image-4.8.0-1021-raspi2, linux-raspi2, linux-image-raspi2
  • USN-3162-1: linux-image-powerpc-smp, linux-image-powerpc-e500mc, linux-image-4.8.0-32-powerpc-e500mc, linux-image-lowlatency, linux-image-4.8.0-32-powerpc-smp, linux-image-powerpc64-emb, linux-image-4.8.0-32-lowlatency, linux-image-4.8.0-32-generic, linux-image-generic, linux-image-4.8.0-32-powerpc64-emb, linux, linux-image-4.8.0-32-generic-lpae, linux-image-generic-lpae
  • USN-3161-4: linux-snapdragon, linux-image-4.4.0-1042-snapdragon
  • USN-3161-1: linux-image-4.4.0-57-generic, linux-image-4.4.0-57-powerpc64-emb, linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-lowlatency, linux-image-4.4.0-57-powerpc-e500mc, linux-image-4.4.0-57-powerpc64-smp, linux-image-extra-4.4.0-57-generic, linux-image-4.4.0-57-powerpc-smp, linux
  • USN-3161-3: linux-raspi2, linux-image-4.4.0-1038-raspi2
  • USN-3161-2: linux-image-4.4.0-57-generic, linux-image-4.4.0-57-powerpc64-emb, linux-image-4.4.0-57-generic-lpae, linux-image-4.4.0-57-lowlatency, linux-image-4.4.0-57-powerpc-e500mc, linux-image-4.4.0-57-powerpc64-smp, linux-image-extra-4.4.0-57-generic, linux-image-4.4.0-57-powerpc-smp, linux-lts-xenial
  • USN-3445-2: linux-image-generic-lpae-lts-trusty, linux-image-generic-lts-trusty, linux-lts-trusty, linux-image-3.13.0-133-generic, linux-image-3.13.0-133-generic-lpae
  • USN-3443-2: linux-image-4.10.0-37-generic, linux-image-extra-4.10.0-37-generic, linux-image-4.10.0-37-lowlatency, linux-image-4.10.0-37-generic-lpae, linux-hwe
  • USN-3443-3: linux-image-extra-4.10.0-1007-gcp, linux-gcp, linux-image-4.10.0-1007-gcp
  • USN-3444-2: linux-image-extra-4.4.0-97-generic, linux-image-4.4.0-97-generic, linux-image-4.4.0-97-generic-lpae, linux-image-4.4.0-97-lowlatency, linux-image-4.4.0-97-powerpc-e500mc, linux-image-4.4.0-97-powerpc-smp, linux-image-4.4.0-97-powerpc64-emb, linux-image-4.4.0-97-powerpc64-smp, linux-lts-xenial
  • USN-3444-1: linux-image-4.4.0-1038-aws, linux-image-4.4.0-1075-raspi2, linux-image-4.4.0-97-generic-lpae, linux-image-4.4.0-1008-kvm, linux-image-4.4.0-97-powerpc-smp, linux-raspi2, linux-image-4.4.0-1032-gke, linux-image-extra-4.4.0-97-generic, linux-kvm, linux-image-extra-4.4.0-1032-gke, linux-image-4.4.0-97-lowlatency, linux-image-4.4.0-97-powerpc-e500mc, linux-gke, linux-aws, linux-image-4.4.0-1077-snapdragon, linux-image-4.4.0-97-powerpc64-smp, linux, linux-snapdragon, linux-image-4.4.0-97-generic, linux-image-4.4.0-97-powerpc64-emb
  • USN-3443-1: linux-image-powerpc-smp, linux-raspi2, linux-image-powerpc-e500mc, linux-image-lowlatency, linux-image-virtual, linux-image-4.10.0-37-generic, linux-image-powerpc64-emb, linux-image-4.10.0-37-lowlatency, linux-image-4.10.0-37-generic-lpae, linux-image-raspi2, linux-image-generic, linux, linux-image-4.10.0-1019-raspi2, linux-image-powerpc64-smp, linux-image-generic-lpae