Amazon Linux 2023 Security Advisory: ALAS2023-2026-1911
Advisory Released Date: 2026-07-07
Advisory Updated Date: 2026-07-07
Severity:
Medium
Issue Overview:
Use After Free in libxml2's xmlParseInternalSubset from GNOME libxml2 version 2.9.11 to 2.11.0 allows a remote attacker to cause a denial-of-service via maliciously crafted XML input with improper entity resolution handling. (CVE-2026-6653)
Affected Packages:
libxml2
Issue Correction:
Run dnf update libxml2 --releasever 2023.12.20260706 or dnf update --advisory ALAS2023-2026-1911 --releasever 2023.12.20260706 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-debugsource-2.10.4-1.amzn2023.0.19.aarch64
libxml2-debuginfo-2.10.4-1.amzn2023.0.19.aarch64
python3-libxml2-debuginfo-2.10.4-1.amzn2023.0.19.aarch64
libxml2-static-2.10.4-1.amzn2023.0.19.aarch64
python3-libxml2-2.10.4-1.amzn2023.0.19.aarch64
libxml2-devel-2.10.4-1.amzn2023.0.19.aarch64
libxml2-2.10.4-1.amzn2023.0.19.aarch64
src:
libxml2-2.10.4-1.amzn2023.0.19.src
x86_64:
libxml2-debuginfo-2.10.4-1.amzn2023.0.19.x86_64
libxml2-debugsource-2.10.4-1.amzn2023.0.19.x86_64
python3-libxml2-debuginfo-2.10.4-1.amzn2023.0.19.x86_64
libxml2-static-2.10.4-1.amzn2023.0.19.x86_64
python3-libxml2-2.10.4-1.amzn2023.0.19.x86_64
libxml2-2.10.4-1.amzn2023.0.19.x86_64
libxml2-devel-2.10.4-1.amzn2023.0.19.x86_64