USN-3404-1: Linux kernel vulnerability

Releases

• Ubuntu 17.04

Packages

• linux - Linux kernel
• linux-raspi2 - Linux kernel for Raspberry Pi 2

Details

A reference count bug was discovered in the Linux kernel ipx protocol
stack. A local attacker could exploit this flaw to cause a denial of
service or possibly other unspecified problems.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 17.04

• linux-image-4.10.0-33-generic - 4.10.0-33.37
• linux-image-generic-lpae - 4.10.0.33.33
• linux-image-4.10.0-33-lowlatency - 4.10.0-33.37
• linux-image-4.10.0-1016-raspi2 - 4.10.0-1016.19
• linux-image-generic - 4.10.0.33.33
• linux-image-4.10.0-33-generic-lpae - 4.10.0-33.37
• linux-image-lowlatency - 4.10.0.33.33
• linux-image-raspi2 - 4.10.0.1016.17

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

• CVE-2017-7487

Related notices

• USN-3406-1: linux-image-extra-3.13.0-129-generic, linux-image-3.13.0-129-powerpc64-smp, linux, linux-image-3.13.0-129-powerpc64-emb, linux-image-3.13.0-129-generic-lpae, linux-image-3.13.0-129-powerpc-smp, linux-image-3.13.0-129-generic, linux-image-3.13.0-129-powerpc-e500mc, linux-image-3.13.0-129-powerpc-e500, linux-image-3.13.0-129-lowlatency
• USN-3344-2: linux-image-4.4.0-83-generic, linux-lts-xenial, linux-image-4.4.0-83-powerpc-smp, linux-image-4.4.0-83-generic-lpae, linux-image-4.4.0-83-powerpc-e500mc, linux-image-4.4.0-83-lowlatency, linux-image-extra-4.4.0-83-generic, linux-image-4.4.0-83-powerpc64-smp, linux-image-4.4.0-83-powerpc64-emb
• USN-3344-1: linux, linux-image-4.4.0-1018-gke, linux-image-4.4.0-1022-aws, linux-snapdragon, linux-gke, linux-image-4.4.0-1061-raspi2, linux-aws, linux-image-4.4.0-83-generic, linux-image-4.4.0-83-powerpc-smp, linux-image-4.4.0-83-generic-lpae, linux-image-4.4.0-83-lowlatency, linux-image-4.4.0-83-powerpc-e500mc, linux-image-extra-4.4.0-1018-gke, linux-image-4.4.0-1063-snapdragon, linux-image-extra-4.4.0-83-generic, linux-raspi2, linux-image-4.4.0-83-powerpc64-smp, linux-image-4.4.0-83-powerpc64-emb
• USN-3404-2: linux-image-4.10.0-33-lowlatency, linux-hwe, linux-image-extra-4.10.0-33-generic, linux-image-4.10.0-33-generic, linux-image-4.10.0-33-generic-lpae
• USN-3406-2: linux-image-generic-lpae-lts-trusty, linux-image-3.13.0-129-generic-lpae, linux-image-3.13.0-129-generic, linux-lts-trusty, linux-image-generic-lts-trusty