ALAS2023-2025-1103

References: CVE-2025-49794  CVE-2025-49795  CVE-2025-49796 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

libxml: Heap use after free (UAF) leads to Denial of service (DoS) (CVE-2025-49794)

libxml: Null pointer dereference leads to Denial of service (DoS) (CVE-2025-49795)

libxml: Type confusion leads to Denial of service (DoS) (CVE-2025-49796)

Issue Correction:
Run dnf update libxml2 --releasever 2023.8.20250808 or dnf update --advisory ALAS2023-2025-1103 --releasever 2023.8.20250808 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:
    libxml2-debuginfo-2.10.4-1.amzn2023.0.12.aarch64
    libxml2-static-2.10.4-1.amzn2023.0.12.aarch64
    libxml2-debugsource-2.10.4-1.amzn2023.0.12.aarch64
    python3-libxml2-debuginfo-2.10.4-1.amzn2023.0.12.aarch64
    python3-libxml2-2.10.4-1.amzn2023.0.12.aarch64
    libxml2-2.10.4-1.amzn2023.0.12.aarch64
    libxml2-devel-2.10.4-1.amzn2023.0.12.aarch64

src:
    libxml2-2.10.4-1.amzn2023.0.12.src

x86_64:
    libxml2-static-2.10.4-1.amzn2023.0.12.x86_64
    libxml2-debugsource-2.10.4-1.amzn2023.0.12.x86_64
    libxml2-debuginfo-2.10.4-1.amzn2023.0.12.x86_64
    python3-libxml2-debuginfo-2.10.4-1.amzn2023.0.12.x86_64
    libxml2-devel-2.10.4-1.amzn2023.0.12.x86_64
    python3-libxml2-2.10.4-1.amzn2023.0.12.x86_64
    libxml2-2.10.4-1.amzn2023.0.12.x86_64