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OpenAdvisories
High ALAS2023-2025-940 1 CVE

Important: kernel6.12 security update (Amazon Linux 2023)

Published Apr 16, 2025 · Updated Apr 29, 2025

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2025-21991: In the Linux kernel, the following vulnerability has been resolved: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes

Fixed packages 22

ReleasePackageFixed in
Amazon Linux · 2023 bpftool 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 bpftool-debuginfo 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-devel 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-headers 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-libbpf 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-libbpf-debuginfo 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-libbpf-devel 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-libbpf-static 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-livepatch-6.12.20-23.97 0:1.0-0.amzn2023
Amazon Linux · 2023 kernel-modules-extra-common 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-tools 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-tools-debuginfo 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel-tools-devel 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel6.12 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel6.12-debuginfo 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel6.12-debuginfo-common-aarch64 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel6.12-debuginfo-common-x86_64 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 kernel6.12-modules-extra 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 perf6.12 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 perf6.12-debuginfo 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 python3-perf6.12 0:6.12.20-23.97.amzn2023
Amazon Linux · 2023 python3-perf6.12-debuginfo 0:6.12.20-23.97.amzn2023

Vulnerabilities 1

  • High 7.8
    CVE-2025-21991

    x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes

    In the Linux kernel, the following vulnerability has been resolved: x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes Currently, load_microcode_amd() iterates over all NUMA nodes, retrieves their CPU masks and unconditionally accesses p…

    Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2025-21991.html