ALAS2023-2025-1186

References: CVE-2025-37750  CVE-2025-38491  CVE-2025-38614  CVE-2025-39673 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:

smb: client: fix UAF in decryption with multichannel (CVE-2025-37750)

In the Linux kernel, the following vulnerability has been resolved:

mptcp: make fallback action and fallback decision atomic (CVE-2025-38491)

In the Linux kernel, the following vulnerability has been resolved:

eventpoll: Fix semi-unbounded recursion (CVE-2025-38614)

In the Linux kernel, the following vulnerability has been resolved:

ppp: fix race conditions in ppp_fill_forward_path (CVE-2025-39673)

Issue Correction:
Run dnf update kernel --releasever 2023.8.20250915 or dnf update --advisory ALAS2023-2025-1186 --releasever 2023.8.20250915 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:

aarch64:
    kernel-libbpf-debuginfo-6.1.150-174.273.amzn2023.aarch64
    kernel-libbpf-devel-6.1.150-174.273.amzn2023.aarch64
    kernel-tools-debuginfo-6.1.150-174.273.amzn2023.aarch64
    kernel-modules-extra-common-6.1.150-174.273.amzn2023.aarch64
    bpftool-debuginfo-6.1.150-174.273.amzn2023.aarch64
    perf-6.1.150-174.273.amzn2023.aarch64
    kernel-modules-extra-6.1.150-174.273.amzn2023.aarch64
    kernel-libbpf-static-6.1.150-174.273.amzn2023.aarch64
    kernel-tools-6.1.150-174.273.amzn2023.aarch64
    kernel-livepatch-6.1.150-174.273-1.0-0.amzn2023.aarch64
    kernel-tools-devel-6.1.150-174.273.amzn2023.aarch64
    python3-perf-6.1.150-174.273.amzn2023.aarch64
    kernel-libbpf-6.1.150-174.273.amzn2023.aarch64
    perf-debuginfo-6.1.150-174.273.amzn2023.aarch64
    kernel-headers-6.1.150-174.273.amzn2023.aarch64
    python3-perf-debuginfo-6.1.150-174.273.amzn2023.aarch64
    bpftool-6.1.150-174.273.amzn2023.aarch64
    kernel-debuginfo-6.1.150-174.273.amzn2023.aarch64
    kernel-6.1.150-174.273.amzn2023.aarch64
    kernel-debuginfo-common-aarch64-6.1.150-174.273.amzn2023.aarch64
    kernel-devel-6.1.150-174.273.amzn2023.aarch64

src:
    kernel-6.1.150-174.273.amzn2023.src

x86_64:
    kernel-libbpf-debuginfo-6.1.150-174.273.amzn2023.x86_64
    kernel-tools-6.1.150-174.273.amzn2023.x86_64
    kernel-tools-devel-6.1.150-174.273.amzn2023.x86_64
    kernel-livepatch-6.1.150-174.273-1.0-0.amzn2023.x86_64
    kernel-tools-debuginfo-6.1.150-174.273.amzn2023.x86_64
    bpftool-debuginfo-6.1.150-174.273.amzn2023.x86_64
    kernel-modules-extra-6.1.150-174.273.amzn2023.x86_64
    bpftool-6.1.150-174.273.amzn2023.x86_64
    kernel-libbpf-6.1.150-174.273.amzn2023.x86_64
    kernel-modules-extra-common-6.1.150-174.273.amzn2023.x86_64
    perf-debuginfo-6.1.150-174.273.amzn2023.x86_64
    python3-perf-debuginfo-6.1.150-174.273.amzn2023.x86_64
    perf-6.1.150-174.273.amzn2023.x86_64
    python3-perf-6.1.150-174.273.amzn2023.x86_64
    kernel-libbpf-static-6.1.150-174.273.amzn2023.x86_64
    kernel-libbpf-devel-6.1.150-174.273.amzn2023.x86_64
    kernel-headers-6.1.150-174.273.amzn2023.x86_64
    kernel-debuginfo-6.1.150-174.273.amzn2023.x86_64
    kernel-6.1.150-174.273.amzn2023.x86_64
    kernel-debuginfo-common-x86_64-6.1.150-174.273.amzn2023.x86_64
    kernel-devel-6.1.150-174.273.amzn2023.x86_64

Changelog:

2025-09-17: CVE-2025-39673 was added to this advisory.