ALASKERNEL-5.4-2025-096

Amazon Linux 2 Security Advisory: ALASKERNEL-5.4-2025-096
Advisory Release Date: 2025-03-13 01:32 Pacific
Advisory Updated Date: 2025-03-13 01:32 Pacific
Severity: Important
Issue Overview:

Insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters may allow an authenticated user to potentially enable denial of service via local access. (CVE-2021-33061)

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

smb: client: fix UAF in smb2_reconnect_server() (CVE-2024-35870)

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

smb: client: fix use-after-free of signing key (CVE-2024-53179)

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

pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (CVE-2025-21702)

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

netem: Update sch->q.qlen before qdisc_tree_reduce_backlog() (CVE-2025-21703)


Affected Packages:

kernel


Note:

This advisory is applicable to Amazon Linux 2 - Kernel-5.4 Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update kernel to update your system.
System reboot is required in order to complete this update.

New Packages:
aarch64:
    kernel-5.4.290-205.405.amzn2.aarch64
    kernel-headers-5.4.290-205.405.amzn2.aarch64
    kernel-debuginfo-common-aarch64-5.4.290-205.405.amzn2.aarch64
    perf-5.4.290-205.405.amzn2.aarch64
    perf-debuginfo-5.4.290-205.405.amzn2.aarch64
    python-perf-5.4.290-205.405.amzn2.aarch64
    python-perf-debuginfo-5.4.290-205.405.amzn2.aarch64
    kernel-tools-5.4.290-205.405.amzn2.aarch64
    kernel-tools-devel-5.4.290-205.405.amzn2.aarch64
    kernel-tools-debuginfo-5.4.290-205.405.amzn2.aarch64
    bpftool-5.4.290-205.405.amzn2.aarch64
    bpftool-debuginfo-5.4.290-205.405.amzn2.aarch64
    kernel-devel-5.4.290-205.405.amzn2.aarch64
    kernel-debuginfo-5.4.290-205.405.amzn2.aarch64

i686:
    kernel-headers-5.4.290-205.405.amzn2.i686

src:
    kernel-5.4.290-205.405.amzn2.src

x86_64:
    kernel-5.4.290-205.405.amzn2.x86_64
    kernel-headers-5.4.290-205.405.amzn2.x86_64
    kernel-debuginfo-common-x86_64-5.4.290-205.405.amzn2.x86_64
    perf-5.4.290-205.405.amzn2.x86_64
    perf-debuginfo-5.4.290-205.405.amzn2.x86_64
    python-perf-5.4.290-205.405.amzn2.x86_64
    python-perf-debuginfo-5.4.290-205.405.amzn2.x86_64
    kernel-tools-5.4.290-205.405.amzn2.x86_64
    kernel-tools-devel-5.4.290-205.405.amzn2.x86_64
    kernel-tools-debuginfo-5.4.290-205.405.amzn2.x86_64
    bpftool-5.4.290-205.405.amzn2.x86_64
    bpftool-debuginfo-5.4.290-205.405.amzn2.x86_64
    kernel-devel-5.4.290-205.405.amzn2.x86_64
    kernel-debuginfo-5.4.290-205.405.amzn2.x86_64

Additional References

Red Hat: CVE-2021-33061, CVE-2024-35870, CVE-2024-53179, CVE-2025-21702, CVE-2025-21703

Mitre: CVE-2021-33061, CVE-2024-35870, CVE-2024-53179, CVE-2025-21702, CVE-2025-21703