Amazon Linux 2 Security Advisory: ALAS-2025-2725
Advisory Release Date: 2025-01-04 00:04 Pacific
Advisory Updated Date: 2025-01-09 15:39 Pacific
Severity:
Medium
Issue Overview:
Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue. (CVE-2024-52804)
Affected Packages:
python3-tornado
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-tornado to update your system.
New Packages:
aarch64:
python3-tornado-5.0.2-4.amzn2.0.4.aarch64
python3-tornado-doc-5.0.2-4.amzn2.0.4.aarch64
python3-tornado-debuginfo-5.0.2-4.amzn2.0.4.aarch64
i686:
python3-tornado-5.0.2-4.amzn2.0.4.i686
python3-tornado-doc-5.0.2-4.amzn2.0.4.i686
python3-tornado-debuginfo-5.0.2-4.amzn2.0.4.i686
src:
python3-tornado-5.0.2-4.amzn2.0.4.src
x86_64:
python3-tornado-5.0.2-4.amzn2.0.4.x86_64
python3-tornado-doc-5.0.2-4.amzn2.0.4.x86_64
python3-tornado-debuginfo-5.0.2-4.amzn2.0.4.x86_64