- Update to 3.8.16:
- 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.
- Avoid publishing list of active per-interpreter
audit hooks via the gc module
- 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 (CVE-2022-45061).
- Update bundled libexpat to 2.5.0
- Port XKCP’s fix for the buffer overflows in SHA-3
(CVE-2022-37454).
- The deprecated mailcap module now refuses to inject
unsafe text (filenames, MIME types, parameters) into shell
commands. Instead of using such text, it will warn and act
as if a match was not found (or for test commands, as if the
test failed).
- Removed upstream patches:
- CVE-2022-37454-sha3-buffer-overflow.patch
- CVE-2022-45061-DoS-by-IDNA-decode.patch