Amazon Linux 2 Security Advisory: ALAS2-2025-3103
Advisory Released Date: 2026-01-05
Advisory Updated Date: 2026-01-05
Severity:
Medium
Issue Overview:
When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents. (CVE-2025-12084)
When loading a plist file, the plistlib module reads data in size specified by the file itself, meaning a malicious file can cause OOM and DoS issues (CVE-2025-13837)
Affected Packages:
python3
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 python3 or yum update --advisory ALAS2-2025-3103 to update your system.
New Packages:
aarch64:
python3-3.7.16-1.amzn2.0.22.aarch64
python3-libs-3.7.16-1.amzn2.0.22.aarch64
python3-devel-3.7.16-1.amzn2.0.22.aarch64
python3-tools-3.7.16-1.amzn2.0.22.aarch64
python3-tkinter-3.7.16-1.amzn2.0.22.aarch64
python3-test-3.7.16-1.amzn2.0.22.aarch64
python3-debug-3.7.16-1.amzn2.0.22.aarch64
python3-debuginfo-3.7.16-1.amzn2.0.22.aarch64
i686:
python3-3.7.16-1.amzn2.0.22.i686
python3-libs-3.7.16-1.amzn2.0.22.i686
python3-devel-3.7.16-1.amzn2.0.22.i686
python3-tools-3.7.16-1.amzn2.0.22.i686
python3-tkinter-3.7.16-1.amzn2.0.22.i686
python3-test-3.7.16-1.amzn2.0.22.i686
python3-debug-3.7.16-1.amzn2.0.22.i686
python3-debuginfo-3.7.16-1.amzn2.0.22.i686
src:
python3-3.7.16-1.amzn2.0.22.src
x86_64:
python3-3.7.16-1.amzn2.0.22.x86_64
python3-libs-3.7.16-1.amzn2.0.22.x86_64
python3-devel-3.7.16-1.amzn2.0.22.x86_64
python3-tools-3.7.16-1.amzn2.0.22.x86_64
python3-tkinter-3.7.16-1.amzn2.0.22.x86_64
python3-test-3.7.16-1.amzn2.0.22.x86_64
python3-debug-3.7.16-1.amzn2.0.22.x86_64
python3-debuginfo-3.7.16-1.amzn2.0.22.x86_64