USN-3037-1: Linux kernel (Vivid HWE) vulnerability

Releases

• Ubuntu 14.04 ESM

Packages

• linux-lts-vivid - Linux hardware enablement kernel from Vivid for Trusty

Details

Jan Stancek discovered that the Linux kernel's memory manager did not
properly handle moving pages mapped by the asynchronous I/O (AIO) ring
buffer to the other nodes. 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 14.04

• linux-image-3.19.0-65-generic - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-generic-lpae - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-lowlatency - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-powerpc-e500mc - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-powerpc-smp - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-powerpc64-emb - 3.19.0-65.73~14.04.1
• linux-image-3.19.0-65-powerpc64-smp - 3.19.0-65.73~14.04.1

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-2016-3070

Related notices

• USN-3035-3: linux-image-4.2.0-42-generic, linux-image-4.2.0-42-powerpc64-emb, linux-lts-wily, linux-image-4.2.0-42-generic-lpae, linux-image-4.2.0-42-powerpc64-smp, linux-image-4.2.0-42-powerpc-e500mc, linux-image-extra-4.2.0-42-generic, linux-image-4.2.0-42-powerpc-smp, linux-image-4.2.0-42-lowlatency
• USN-3034-1: linux-image-3.13.0-92-powerpc64-smp, linux-image-3.13.0-92-lowlatency, linux-image-3.13.0-92-generic, linux-image-3.13.0-92-powerpc64-emb, linux-image-3.13.0-92-powerpc-smp, linux-image-extra-3.13.0-92-generic, linux-image-3.13.0-92-powerpc-e500mc, linux-image-3.13.0-92-powerpc-e500, linux-image-3.13.0-92-generic-lpae, linux
• USN-3034-2: linux-image-3.13.0-92-generic-lpae, linux-lts-trusty, linux-image-3.13.0-92-generic
• USN-3035-1: linux-image-4.2.0-42-generic, linux-image-4.2.0-42-powerpc64-emb, linux-image-4.2.0-42-powerpc-smp, linux-image-4.2.0-42-generic-lpae, linux-image-4.2.0-42-powerpc64-smp, linux-image-4.2.0-42-powerpc-e500mc, linux-image-4.2.0-42-lowlatency, linux
• USN-3035-2: linux-image-4.2.0-1034-raspi2, linux-raspi2
• USN-3036-1: linux-image-3.16.0-77-generic-lpae, linux-lts-utopic, linux-image-3.16.0-77-lowlatency, linux-image-3.16.0-77-powerpc-smp, linux-image-3.16.0-77-powerpc64-smp, linux-image-3.16.0-77-powerpc-e500mc, linux-image-3.16.0-77-generic, linux-image-3.16.0-77-powerpc64-emb, linux-image-extra-3.16.0-77-generic