Home / mailings [USN-3107-2] Linux kernel (Raspberry Pi 2) vulnerability
Posted on 24 October 2016
Ubuntu Security--===============5183858297636178347==
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==========================================================================
Ubuntu Security Notice USN-3107-2
October 24, 2016
linux-raspi2 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-raspi2: Linux kernel for Raspberry Pi 2
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 versions:
Ubuntu 16.10:
linux-image-4.8.0-1017-raspi2 4.8.0-1017.20
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:
http://www.ubuntu.com/usn/usn-3107-2
http://www.ubuntu.com/usn/usn-3107-1
CVE-2016-5195
Package Information:
https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1017.20
