5 April 2017
linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon, linux-ti-omap4 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
The system could be made to crash under certain conditions.
Software Description
- linux - Linux kernel
- linux-raspi2 - Linux kernel for Raspberry Pi 2
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-gke - Linux kernel for Google Container Engine (GKE) systems
- linux-snapdragon - Linux kernel for Snapdragon Processors
- linux-ti-omap4 - Linux kernel for OMAP4
Details
Andrey Konovalov discovered that the AF_PACKET implementation in the Linux
kernel did not properly validate certain block-size data. A local 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 16.10
- linux-image-4.8.0-1033-raspi2 - 4.8.0-1033.36
- linux-image-4.8.0-46-generic - 4.8.0-46.49
- linux-image-4.8.0-46-generic-lpae - 4.8.0-46.49
- linux-image-4.8.0-46-lowlatency - 4.8.0-46.49
- linux-image-4.8.0-46-powerpc-e500mc - 4.8.0-46.49
- linux-image-4.8.0-46-powerpc-smp - 4.8.0-46.49
- linux-image-4.8.0-46-powerpc64-emb - 4.8.0-46.49
- linux-image-generic - 4.8.0.46.58
- linux-image-generic-lpae - 4.8.0.46.58
- linux-image-lowlatency - 4.8.0.46.58
- linux-image-powerpc-e500mc - 4.8.0.46.58
- linux-image-powerpc-smp - 4.8.0.46.58
- linux-image-powerpc64-smp - 4.8.0.46.58
- linux-image-raspi2 - 4.8.0.1033.37
- Ubuntu 16.04 LTS
- linux-image-4.4.0-1010-gke - 4.4.0-1010.10
- linux-image-4.4.0-1013-aws - 4.4.0-1013.22
- linux-image-4.4.0-1052-raspi2 - 4.4.0-1052.59
- linux-image-4.4.0-1055-snapdragon - 4.4.0-1055.59
- linux-image-4.4.0-72-generic - 4.4.0-72.93
- linux-image-4.4.0-72-generic-lpae - 4.4.0-72.93
- linux-image-4.4.0-72-lowlatency - 4.4.0-72.93
- linux-image-4.4.0-72-powerpc-e500mc - 4.4.0-72.93
- linux-image-4.4.0-72-powerpc-smp - 4.4.0-72.93
- linux-image-4.4.0-72-powerpc64-smp - 4.4.0-72.93
- linux-image-aws - 4.4.0.1013.16
- linux-image-generic - 4.4.0.72.78
- linux-image-generic-lpae - 4.4.0.72.78
- linux-image-gke - 4.4.0.1010.12
- linux-image-lowlatency - 4.4.0.72.78
- linux-image-powerpc-e500mc - 4.4.0.72.78
- linux-image-powerpc-smp - 4.4.0.72.78
- linux-image-powerpc64-smp - 4.4.0.72.78
- linux-image-powerpc64-smp-lts-utopic - 4.4.0.72.78
- linux-image-powerpc64-smp-lts-vivid - 4.4.0.72.78
- linux-image-powerpc64-smp-lts-wily - 4.4.0.72.78
- linux-image-powerpc64-smp-lts-xenial - 4.4.0.72.78
- linux-image-raspi2 - 4.4.0.1052.53
- linux-image-snapdragon - 4.4.0.1055.48
- Ubuntu 14.04 LTS
- linux-image-3.13.0-116-generic - 3.13.0-116.163
- linux-image-3.13.0-116-generic-lpae - 3.13.0-116.163
- linux-image-3.13.0-116-lowlatency - 3.13.0-116.163
- linux-image-3.13.0-116-powerpc-e500 - 3.13.0-116.163
- linux-image-3.13.0-116-powerpc-e500mc - 3.13.0-116.163
- linux-image-3.13.0-116-powerpc-smp - 3.13.0-116.163
- linux-image-3.13.0-116-powerpc64-smp - 3.13.0-116.163
- linux-image-generic - 3.13.0.116.126
- linux-image-generic-lpae - 3.13.0.116.126
- linux-image-lowlatency - 3.13.0.116.126
- linux-image-powerpc-e500 - 3.13.0.116.126
- linux-image-powerpc-e500mc - 3.13.0.116.126
- linux-image-powerpc-smp - 3.13.0.116.126
- linux-image-powerpc64-smp - 3.13.0.116.126
- Ubuntu 12.04 LTS
- linux-image-3.2.0-126-generic - 3.2.0-126.169
- linux-image-3.2.0-126-generic-pae - 3.2.0-126.169
- linux-image-3.2.0-126-highbank - 3.2.0-126.169
- linux-image-3.2.0-126-omap - 3.2.0-126.169
- linux-image-3.2.0-126-powerpc-smp - 3.2.0-126.169
- linux-image-3.2.0-126-powerpc64-smp - 3.2.0-126.169
- linux-image-3.2.0-126-virtual - 3.2.0-126.169
- linux-image-3.2.0-1504-omap4 - 3.2.0-1504.131
- linux-image-generic - 3.2.0.126.141
- linux-image-generic-pae - 3.2.0.126.141
- linux-image-highbank - 3.2.0.126.141
- linux-image-omap - 3.2.0.126.141
- linux-image-omap4 - 3.2.0.1504.99
- linux-image-powerpc-smp - 3.2.0.126.141
- linux-image-powerpc64-smp - 3.2.0.126.141
- linux-image-virtual - 3.2.0.126.141
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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
Vulmon