Amazon Linux 2 Security Advisory: ALAS-2022-1896
Advisory Release Date: 2022-12-01 20:31 Pacific
Advisory Updated Date: 2025-02-11 23:16 Pacific
2025-02-11: CVE-2021-28861 was added to this advisory.
A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability. (CVE-2020-10735)
Python 3.x through 3.10 has an open redirection vulnerability in lib/http/server.py due to no protection against multiple (/) at the beginning of URI path which may leads to information disclosure. NOTE: this is disputed by a third party because the http.server.html documentation page states "Warning: http.server is not recommended for production. It only implements basic security checks." (CVE-2021-28861)
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 to update your system.
aarch64:
python3-3.7.15-1.amzn2.0.1.aarch64
python3-libs-3.7.15-1.amzn2.0.1.aarch64
python3-devel-3.7.15-1.amzn2.0.1.aarch64
python3-tools-3.7.15-1.amzn2.0.1.aarch64
python3-tkinter-3.7.15-1.amzn2.0.1.aarch64
python3-test-3.7.15-1.amzn2.0.1.aarch64
python3-debug-3.7.15-1.amzn2.0.1.aarch64
python3-debuginfo-3.7.15-1.amzn2.0.1.aarch64
i686:
python3-3.7.15-1.amzn2.0.1.i686
python3-libs-3.7.15-1.amzn2.0.1.i686
python3-devel-3.7.15-1.amzn2.0.1.i686
python3-tools-3.7.15-1.amzn2.0.1.i686
python3-tkinter-3.7.15-1.amzn2.0.1.i686
python3-test-3.7.15-1.amzn2.0.1.i686
python3-debug-3.7.15-1.amzn2.0.1.i686
python3-debuginfo-3.7.15-1.amzn2.0.1.i686
src:
python3-3.7.15-1.amzn2.0.1.src
x86_64:
python3-3.7.15-1.amzn2.0.1.x86_64
python3-libs-3.7.15-1.amzn2.0.1.x86_64
python3-devel-3.7.15-1.amzn2.0.1.x86_64
python3-tools-3.7.15-1.amzn2.0.1.x86_64
python3-tkinter-3.7.15-1.amzn2.0.1.x86_64
python3-test-3.7.15-1.amzn2.0.1.x86_64
python3-debug-3.7.15-1.amzn2.0.1.x86_64
python3-debuginfo-3.7.15-1.amzn2.0.1.x86_64