USN-3443-3: Linux kernel (GCP) vulnerability
11 October 2017
The system could be made to crash under certain conditions.
Releases
Packages
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
Details
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)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
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-3443-2: linux-hwe, linux-image-4.10.0-37-generic-lpae, linux-image-4.10.0-37-generic, linux-image-4.10.0-37-lowlatency, linux-image-extra-4.10.0-37-generic
- USN-3444-2: linux-image-4.4.0-97-generic, linux-image-4.4.0-97-powerpc-e500mc, linux-image-4.4.0-97-generic-lpae, linux-image-4.4.0-97-lowlatency, linux-image-4.4.0-97-powerpc64-emb, linux-image-4.4.0-97-powerpc-smp, linux-lts-xenial, linux-image-extra-4.4.0-97-generic, linux-image-4.4.0-97-powerpc64-smp
- USN-3444-1: linux-gke, linux-image-4.4.0-97-generic, linux-image-4.4.0-97-generic-lpae, linux-image-4.4.0-97-powerpc64-emb, linux-image-extra-4.4.0-1032-gke, linux-kvm, linux, linux-image-4.4.0-1032-gke, linux-image-4.4.0-97-lowlatency, linux-aws, linux-image-extra-4.4.0-97-generic, linux-image-4.4.0-1077-snapdragon, linux-raspi2, linux-image-4.4.0-1075-raspi2, linux-image-4.4.0-97-powerpc-smp, linux-image-4.4.0-1038-aws, linux-image-4.4.0-1008-kvm, linux-image-4.4.0-97-powerpc64-smp, linux-snapdragon, linux-image-4.4.0-97-powerpc-e500mc
- USN-3443-1: linux, linux-image-generic-lpae, linux-image-generic, linux-image-powerpc-smp, linux-raspi2, linux-image-powerpc64-smp, linux-image-virtual, linux-image-4.10.0-37-generic-lpae, linux-image-powerpc-e500mc, linux-image-4.10.0-37-generic, linux-image-lowlatency, linux-image-4.10.0-37-lowlatency, linux-image-raspi2, linux-image-powerpc64-emb, linux-image-4.10.0-1019-raspi2
- USN-3445-1: linux-image-3.13.0-133-powerpc-e500mc, linux, linux-image-3.13.0-133-powerpc64-smp, linux-image-extra-3.13.0-133-generic, linux-image-3.13.0-133-generic-lpae, linux-image-3.13.0-133-powerpc64-emb, linux-image-3.13.0-133-lowlatency, linux-image-3.13.0-133-generic, linux-image-3.13.0-133-powerpc-smp, linux-image-3.13.0-133-powerpc-e500
- USN-3445-2: linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-133-generic-lpae, linux-image-generic-lts-trusty, linux-image-3.13.0-133-generic, linux-lts-trusty