USN-2872-3: Linux kernel (Raspberry Pi 2) vulnerability
19 January 2016
The system could be made to crash or run programs as an administrator.
Releases
Packages
- linux-raspi2 - Linux kernel for Raspberry Pi 2
Details
Yevgeny Pats discovered that the session keyring implementation in the
Linux kernel did not properly reference count when joining an existing
session keyring. A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code with
administrative privileges.
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.10
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.