Ubuntu Security Notice USN-3107-1
19th October, 2016
linux vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 16.10
Summary
The system could be made to run programs as an administrator.
Software description
- linux
– Linux kernel
Details
It was discovered that a race condition existed in the memory manager of
the Linux kernel when handling copy-on-write breakage of private read-only
memory mappings. A local attacker could use this to gain administrative
privileges.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 16.10:
-
linux-image-4.8.0-26-powerpc64-emb
4.8.0-26.28
-
linux-image-4.8.0-26-generic
4.8.0-26.28
-
linux-image-4.8.0-26-generic-lpae
4.8.0-26.28
-
linux-image-4.8.0-26-lowlatency
4.8.0-26.28
-
linux-image-4.8.0-26-powerpc-smp
4.8.0-26.28
-
linux-image-4.8.0-26-powerpc-e500mc
4.8.0-26.28
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.