ALAS2-2025-2993


Amazon Linux 2 Security Advisory: ALAS2-2025-2993
Advisory Released Date: 2025-09-16
Advisory Updated Date: 2025-09-16
Severity: Important

Issue Overview:

Improper buffer restrictions for some Intel(R) Xeon(R) Processor firmware with SGX enabled may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2025-20053)

Missing reference to active allocated resource for some Intel(R) Xeon(R) processors may allow an authenticated user to potentially enable denial of service via local access. (CVE-2025-21090)

Insufficient control flow management in the Alias Checking Trusted Module (ACTM) firmware for some Intel(R) Xeon(R) processors may allow a privileged user to potentially enable escalation of privilege via local access. (CVE-2025-24305)


Affected Packages:

microcode_ctl


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update microcode_ctl or yum update --advisory ALAS2-2025-2993 to update your system.
System reboot is required in order to complete this update.

New Packages:
i686:
    microcode_ctl-2.1-47.amzn2.4.25.i686
    microcode_ctl-debuginfo-2.1-47.amzn2.4.25.i686

src:
    microcode_ctl-2.1-47.amzn2.4.25.src

x86_64:
    microcode_ctl-2.1-47.amzn2.4.25.x86_64
    microcode_ctl-debuginfo-2.1-47.amzn2.4.25.x86_64