ALAS2023-2026-3242

References: CVE-2026-12318  CVE-2026-16389 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152. (CVE-2026-12318)

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153. (CVE-2026-16389)

Issue Correction:
Run dnf update nss --releasever 2023.12.20261026 or dnf update --advisory ALAS2023-2026-3242 --releasever 2023.12.20261026 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:
    nss-pkcs11-devel-3.124.0-1.amzn2023.0.2.aarch64
    nss-softokn-freebl-3.124.0-1.amzn2023.0.2.aarch64
    nss-util-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nspr-devel-4.39.0-1.amzn2023.0.2.aarch64
    nss-softokn-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nss-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nss-softokn-devel-3.124.0-1.amzn2023.0.2.aarch64
    nss-tools-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nss-softokn-freebl-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nss-softokn-freebl-devel-3.124.0-1.amzn2023.0.2.aarch64
    nss-sysinit-3.124.0-1.amzn2023.0.2.aarch64
    nss-debugsource-3.124.0-1.amzn2023.0.2.aarch64
    nspr-debuginfo-4.39.0-1.amzn2023.0.2.aarch64
    nss-tools-3.124.0-1.amzn2023.0.2.aarch64
    nss-devel-3.124.0-1.amzn2023.0.2.aarch64
    nspr-4.39.0-1.amzn2023.0.2.aarch64
    nss-util-3.124.0-1.amzn2023.0.2.aarch64
    nss-util-devel-3.124.0-1.amzn2023.0.2.aarch64
    nss-sysinit-debuginfo-3.124.0-1.amzn2023.0.2.aarch64
    nss-softokn-3.124.0-1.amzn2023.0.2.aarch64
    nss-3.124.0-1.amzn2023.0.2.aarch64

src:
    nss-3.124.0-1.amzn2023.0.2.src

x86_64:
    nss-softokn-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nss-util-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nspr-4.39.0-1.amzn2023.0.2.x86_64
    nss-pkcs11-devel-3.124.0-1.amzn2023.0.2.x86_64
    nss-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nss-softokn-freebl-3.124.0-1.amzn2023.0.2.x86_64
    nss-softokn-3.124.0-1.amzn2023.0.2.x86_64
    nss-tools-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nss-sysinit-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nss-debugsource-3.124.0-1.amzn2023.0.2.x86_64
    nss-devel-3.124.0-1.amzn2023.0.2.x86_64
    nspr-debuginfo-4.39.0-1.amzn2023.0.2.x86_64
    nss-softokn-devel-3.124.0-1.amzn2023.0.2.x86_64
    nss-tools-3.124.0-1.amzn2023.0.2.x86_64
    nss-util-devel-3.124.0-1.amzn2023.0.2.x86_64
    nss-softokn-freebl-debuginfo-3.124.0-1.amzn2023.0.2.x86_64
    nss-softokn-freebl-devel-3.124.0-1.amzn2023.0.2.x86_64
    nspr-devel-4.39.0-1.amzn2023.0.2.x86_64
    nss-util-3.124.0-1.amzn2023.0.2.x86_64
    nss-sysinit-3.124.0-1.amzn2023.0.2.x86_64
    nss-3.124.0-1.amzn2023.0.2.x86_64