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=========================================================================Ubuntu Security Notice USN-3129-2
November 11, 2016

linux-raspi2 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.10

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Ondrej Kozina discovered that the keyring interface in the Linux kernel
contained a buffer overflow when displaying timeout events via the
/proc/keys interface. A local attacker could use this to cause a denial of
service (system crash). (CVE-2016-7042)

Update instructions:

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

Ubuntu 16.10:
  linux-image-4.8.0-1018-raspi2   4.8.0-1018.21
  linux-image-raspi2              4.8.0.1018.21

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:
  https://ubuntu.com/security/notices/USN-3129-2
  https://ubuntu.com/security/notices/USN-3129-1
  CVE-2016-7042

Package Information:
  https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1018.21

Ubuntu 3129-2: Linux kernel (Raspberry Pi 2) vulnerabilities

November 11, 2016
The system could be made to crash under certain conditions.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 16.10: linux-image-4.8.0-1018-raspi2 4.8.0-1018.21 linux-image-raspi2 4.8.0.1018.21 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

https://ubuntu.com/security/notices/USN-3129-2

https://ubuntu.com/security/notices/USN-3129-1

CVE-2016-7042

Severity
November 11, 2016

Package Information

https://launchpad.net/ubuntu/+source/linux-raspi2/4.8.0-1018.21

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