CVE-2018-3646 Affecting intel-microcode package, versions <3.20180807a.0ubuntu0.16.04.1


Severity

Recommended
high

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (34th percentile)

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  • Snyk IDSNYK-UBUNTU1604-INTELMICROCODE-325078
  • published14 Aug 2018
  • disclosed14 Aug 2018

Introduced: 14 Aug 2018

CVE-2018-3646  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 intel-microcode to version 3.20180807a.0ubuntu0.16.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream intel-microcode package and not the intel-microcode package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.

References