CVE-2019-11091

Description

Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

How to fix CVE-2019-11091

To remediate CVE-2019-11091, upgrade the affected package to a fixed version below.

• —upgrade to 4.12.0-r2 or later
• —upgrade to 3.20190514.1 or later
• —upgrade to 4.19.37-2 or later
• —upgrade to 4.11.1+92-g6c33308a8d-1 or later

Is CVE-2019-11091 being exploited?

Low — EPSS is 1.7%, meaning exploitation activity has not been observed at scale.

Affected packages (4)

• from 0, < 4.12.0-r2
• from 0, < 3.20190514.1
• from 0, < 4.19.37-2
• from 0, < 4.11.1+92-g6c33308a8d-1

CVSS scores

References (2)

• ADVISORYsecurity.alpinelinux.org/vuln/CVE-2019-11091
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2019-11091