Amazon Linux 2 Security Advisory: ALAS2-2025-2893
Advisory Released Date: 2025-06-24
Advisory Updated Date: 2025-06-24
Severity:
Important
Issue Overview:
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input. (CVE-2025-6021)
Affected Packages:
libxml2
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libxml2 to update your system.
New Packages:
aarch64:
libxml2-2.9.1-6.amzn2.5.18.aarch64
libxml2-devel-2.9.1-6.amzn2.5.18.aarch64
libxml2-static-2.9.1-6.amzn2.5.18.aarch64
libxml2-python-2.9.1-6.amzn2.5.18.aarch64
libxml2-debuginfo-2.9.1-6.amzn2.5.18.aarch64
i686:
libxml2-2.9.1-6.amzn2.5.18.i686
libxml2-devel-2.9.1-6.amzn2.5.18.i686
libxml2-static-2.9.1-6.amzn2.5.18.i686
libxml2-python-2.9.1-6.amzn2.5.18.i686
libxml2-debuginfo-2.9.1-6.amzn2.5.18.i686
src:
libxml2-2.9.1-6.amzn2.5.18.src
x86_64:
libxml2-2.9.1-6.amzn2.5.18.x86_64
libxml2-devel-2.9.1-6.amzn2.5.18.x86_64
libxml2-static-2.9.1-6.amzn2.5.18.x86_64
libxml2-python-2.9.1-6.amzn2.5.18.x86_64
libxml2-debuginfo-2.9.1-6.amzn2.5.18.x86_64