USN-3690-2

USN-3690-2 · amd64-microcode regression

This page contains facts from public vulnerability sources. Check the original advisory before updating.

USN-3690-1 provided updated microcode for AMD processors to address CVE-2017-5715 (aka Spectre). Unfortunately, the update caused some systems to fail to boot. This update reverts the update for Ubuntu 14.04 LTS. We apologize for the inconvenience. Original advisory 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 the microcode updates for AMD 17H family processors required for the corresponding Linux kernel updates.

Fix available

Published

2018-07-05T22:13:21Z

Updated

2026-02-10T04:41:22Z

Stack: system

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