Amazon Linux 2023 Security Advisory: ALAS2023-2026-1881
Advisory Released Date: 2026-06-22
Advisory Updated Date: 2026-06-22
Severity:
Important
Issue Overview:
In the Linux kernel, the following vulnerability has been resolved:
smb: client: validate the whole DACL before rewriting it in cifsacl (CVE-2026-31709)
Affected Packages:
kernel6.18
Issue Correction:
Run dnf update kernel6.18 --releasever 2023.12.20260622 or dnf update --advisory ALAS2023-2026-1881 --releasever 2023.12.20260622 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:
perf6.18-debuginfo-6.18.35-68.127.amzn2023.aarch64
bpftool6.18-6.18.35-68.127.amzn2023.aarch64
kernel6.18-tools-debuginfo-6.18.35-68.127.amzn2023.aarch64
kernel6.18-tools-devel-6.18.35-68.127.amzn2023.aarch64
bpftool6.18-debuginfo-6.18.35-68.127.amzn2023.aarch64
python3-perf6.18-debuginfo-6.18.35-68.127.amzn2023.aarch64
kernel6.18-modules-extra-common-6.18.35-68.127.amzn2023.aarch64
microvm-kernel6.18-6.18.35-68.127.amzn2023.aarch64
kernel-livepatch-6.18.35-68.127-1.0-0.amzn2023.aarch64
python3-perf6.18-6.18.35-68.127.amzn2023.aarch64
kernel6.18-tools-6.18.35-68.127.amzn2023.aarch64
kernel6.18-modules-extra-6.18.35-68.127.amzn2023.aarch64
perf6.18-6.18.35-68.127.amzn2023.aarch64
kernel6.18-headers-6.18.35-68.127.amzn2023.aarch64
kernel6.18-6.18.35-68.127.amzn2023.aarch64
kernel6.18-debuginfo-6.18.35-68.127.amzn2023.aarch64
kernel6.18-debuginfo-common-aarch64-6.18.35-68.127.amzn2023.aarch64
kernel6.18-devel-6.18.35-68.127.amzn2023.aarch64
src:
kernel6.18-6.18.35-68.127.amzn2023.src
x86_64:
kernel6.18-tools-6.18.35-68.127.amzn2023.x86_64
kernel6.18-tools-debuginfo-6.18.35-68.127.amzn2023.x86_64
microvm-kernel6.18-6.18.35-68.127.amzn2023.x86_64
bpftool6.18-debuginfo-6.18.35-68.127.amzn2023.x86_64
kernel6.18-headers-6.18.35-68.127.amzn2023.x86_64
kernel-livepatch-6.18.35-68.127-1.0-0.amzn2023.x86_64
perf6.18-debuginfo-6.18.35-68.127.amzn2023.x86_64
python3-perf6.18-debuginfo-6.18.35-68.127.amzn2023.x86_64
kernel6.18-modules-extra-6.18.35-68.127.amzn2023.x86_64
bpftool6.18-6.18.35-68.127.amzn2023.x86_64
kernel6.18-modules-extra-common-6.18.35-68.127.amzn2023.x86_64
kernel6.18-debuginfo-6.18.35-68.127.amzn2023.x86_64
kernel6.18-tools-devel-6.18.35-68.127.amzn2023.x86_64
perf6.18-6.18.35-68.127.amzn2023.x86_64
python3-perf6.18-6.18.35-68.127.amzn2023.x86_64
kernel6.18-6.18.35-68.127.amzn2023.x86_64
kernel6.18-debuginfo-common-x86_64-6.18.35-68.127.amzn2023.x86_64
kernel6.18-devel-6.18.35-68.127.amzn2023.x86_64