USN-3152-1: Linux kernel vulnerability

Releases

• Ubuntu 16.10

Packages

• linux - Linux kernel

Details

Philip Pettersson discovered a race condition in the af_packet
implementation in the Linux kernel. A local unprivileged attacker could use
this to cause a denial of service (system crash) or run arbitrary code with
administrative privileges.

Update instructions

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

Ubuntu 16.10

• linux-image-powerpc-smp - 4.8.0.30.39
• linux-image-4.8.0-30-generic-lpae - 4.8.0-30.32
• linux-image-4.8.0-30-powerpc-smp - 4.8.0-30.32
• linux-image-4.8.0-30-powerpc-e500mc - 4.8.0-30.32
• linux-image-4.8.0-30-lowlatency - 4.8.0-30.32
• linux-image-generic - 4.8.0.30.39
• linux-image-4.8.0-30-generic - 4.8.0-30.32
• linux-image-powerpc-e500mc - 4.8.0.30.39
• linux-image-lowlatency - 4.8.0.30.39
• linux-image-generic-lpae - 4.8.0.30.39
• linux-image-powerpc64-emb - 4.8.0.30.39
• linux-image-4.8.0-30-powerpc64-emb - 4.8.0-30.32

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-2016-8655

Related notices

• USN-3151-4
• USN-3151-3
• USN-3151-2
• USN-3151-1
• USN-3149-1
• USN-3149-2
• USN-3150-2
• USN-3150-1
• USN-3152-2