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Ubuntu Security Notice USN-3521-1

Ubuntu Security Notice USN-3521-1
Posted Jan 9, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3521-1 - Jann Horn discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. This update provides mitigations to address the issue, along with compatibility fixes for the corresponding Linux kernel updates.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-5753
SHA-256 | 2b04254723d86ddd229f4fcf7163aaec50cd2ba6cea2b8767d18577223c95dbc

Ubuntu Security Notice USN-3521-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3521-1
January 09, 2018

nvidia-graphics-drivers-384 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 17.10
- Ubuntu 17.04
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

The system could be made to expose sensitive information.

Software Description:
- nvidia-graphics-drivers-384: NVIDIA binary X.Org driver

Details:

Jann Horn discovered that microprocessors utilizing speculative execution
and branch prediction may allow unauthorized memory reads via sidechannel
attacks. This flaw is known as Spectre. A local attacker could use this to
expose sensitive information, including kernel memory.

This update provides mitigations to address the issue, along with
compatibility fixes for the corresponding Linux kernel updates.

Update instructions:

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

Ubuntu 17.10:
nvidia-384 384.111-0ubuntu0.17.10.1

Ubuntu 17.04:
nvidia-384 384.111-0ubuntu0.17.04.1

Ubuntu 16.04 LTS:
nvidia-384 384.111-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
nvidia-384 384.111-0ubuntu0.14.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://www.ubuntu.com/usn/usn-3521-1
CVE-2017-5753

Package Information:

https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-384/384.111-0ubuntu0.17.10.1

https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-384/384.111-0ubuntu0.17.04.1

https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-384/384.111-0ubuntu0.16.04.1

https://launchpad.net/ubuntu/+source/nvidia-graphics-drivers-384/384.111-0ubuntu0.14.04.1


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