Non-Transparent Sharing of Microarchitectural Resources Affecting microcode_ctl-debuginfo package, versions <2:2.1-47.amzn2.4.17


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-AMZN2-MICROCODECTLDEBUGINFO-6427232
  • published13 Mar 2024
  • disclosed14 Mar 2024

Introduced: 13 Mar 2024

CVE-2023-38575  (opens in a new tab)
CWE-1303  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 microcode_ctl-debuginfo to version 2:2.1-47.amzn2.4.17 or higher.
This issue was patched in ALAS2-2024-2491.

NVD Description

Note: Versions mentioned in the description apply only to the upstream microcode_ctl-debuginfo package and not the microcode_ctl-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.

CVSS Scores

version 3.1