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Amazon Linux 2023: CVE-2023-23583: Important priority package update for microcode_ctl

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Amazon Linux 2023: CVE-2023-23583: Important priority package update for microcode_ctl

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
11/14/2023
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege and/or information disclosure and/or denial of service via local access. A security vulnerability was found in some Intel processors. Execution of REP MOVSB instructions with a redundant REX prefix may result in execution continuing at an incorrect EIP address after a micro-architectural event occurs, potentially allowing privilege escalation, information disclosure and/or a denial of service via local access.

Solution(s)

  • amazon-linux-2023-upgrade-microcode-ctl

References

  • https://attackerkb.com/topics/cve-2023-23583
  • CVE - 2023-23583
  • https://alas.aws.amazon.com/AL2023/ALAS-2023-436.html
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