FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

Python -- multiple vulnerabilities

Affected packages
python37 < 3.7.16
python38 < 3.8.16
python39 < 3.9.16
python310 < 3.10.9
python311 < 3.11.1


VuXML ID 050eba46-7638-11ed-820d-080027d3a315
Discovery 2022-09-28
Entry 2022-12-07

Python reports:

gh-100001: python -m http.server no longer allows terminal control characters sent within a garbage request to be printed to the stderr server log. This is done by changing the http.server BaseHTTPRequestHandler .log_message method to replace control characters with a \xHH hex escape before printing.

gh-87604: Avoid publishing list of active per-interpreter audit hooks via the gc module.

gh-98433: The IDNA codec decoder used on DNS hostnames by socket or asyncio related name resolution functions no longer involves a quadratic algorithm. This prevents a potential CPU denial of service if an out-of-spec excessive length hostname involving bidirectional characters were decoded. Some protocols such as urllib http 3xx redirects potentially allow for an attacker to supply such a name.

gh-98739: Update bundled libexpat to 2.5.0.

gh-97612: Fix a shell code injection vulnerability in the example script. The script no longer uses a shell to run openssl commands. Issue reported and initial fix by Caleb Shortt. Patch by Victor Stinner.