- 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
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=115
- Fix multiplying a list by an integer (list *= int): detect
the integer overflow when the new allocated length is close
to the maximum size.
- Fix a shell code injection vulnerability in the
get-remote-certificate.py example script. The script no
longer uses a shell to run openssl commands. (originally
filed as CVE-2022-37460, later withdrawn)
- Fix command line parsing: reject -X int_max_str_digits option
with no value (invalid) when the PYTHONINTMAXSTRDIGITS
environment variable is set to a valid limit.
- When ValueError is raised if an integer is larger than the
limit, mention the sys.set_int_max_str_digits() function in
the error message.
- Update bundled libexpat to 2.4.9
- Fixes a potential buffer overrun in msilib.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=106
- (CVE-2020-10735, bsc#1203125). Converting between int
and str in bases other than 2 (binary), 4, 8 (octal), 16
(hexadecimal), or 32 such as base 10 (decimal) now raises a
ValueError if the number of digits in string form is above a
limit to avoid potential denial of service attacks due to the
algorithmic complexity.
This new limit can be configured or disabled by environment
variable, command line flag, or sys APIs. See the integer
string conversion length limitation documentation. The
default limit is 4300 digits in string form.
- (CVE-2021-28861, bsc#1202624) http.server: Fix an open
redirection vulnerability in the HTTP server when an URI path
starts with //. Vulnerability discovered, and initial fix
proposed, by Hamza Avvan.
- Also other bugfixes:
- Fix contextvars HAMT implementation to handle iteration
over deep trees. The bug was discovered and fixed by Eli
Libman. See MagicStack/immutables#84 for more details.
- Fix ensurepip environment isolation for subprocess running
pip.
- Raise ProgrammingError instead of segfaulting on recursive
usage of cursors in sqlite3 converters. Patch by Sergey
Fedoseev.
- Add a new gh role to the documentation to link to GitHub
issues.
- Pin Jinja to a version compatible with Sphinx version
2.4.4.
- test_ssl is now checking for supported TLS version and
protocols in more tests.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=104
Core and Builtins
bpo-46794: Bump up the libexpat version into 2.4.6
bpo-46985: Upgrade pip wheel bundled with ensurepip (pip 22.0.4)
bpo-46932: Update bundled libexpat to 2.4.7
bpo-46811: Make test suite support Expat >=2.4.5
bpo-46784: Fix libexpat symbols collisions with user
dynamically loaded or statically linked libexpat in embedded
Python.
bpo-46400: expat: Update libexpat from 2.4.1 to 2.4.4
bpo-46474: In importlib.metadata.EntryPoint.pattern, avoid
potential REDoS by limiting ambiguity in consecutive
whitespace.
bpo-44849: Fix the os.set_inheritable() function on FreeBSD
14 for file descriptor opened with the O_PATH flag: ignore
the EBADF error on ioctl(), fallback on the fcntl()
implementation.
bpo-41028: Language and version switchers, previously
maintained in every cpython branches, are now handled by
docsbuild-script.
bpo-45195: Fix test_readline.test_nonascii(): sometimes, the
newline character is not written at the end, so don’t
expect it in the output.
bpo-44949: Fix auto history tests of test_readline:
sometimes, the newline character is not written at the end,
so don’t expect it in the output.
bpo-45405: Prevent internal configure error when running
configure with recent versions of clang.
- Remove upstreamed patches:
- support-expat-245.patch
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=85
- Update to 3.8.12
* Complete list of changes is available at
https://docs.python.org/release/3.8.12/whatsnew/changelog.html
* Security
- bpo-42278: Replaced usage of tempfile.mktemp() with
TemporaryDirectory to avoid a potential race condition.
- bpo-44394: Update the vendored copy of libexpat to 2.4.1
(from 2.2.8) to get the fix for the CVE-2013-0340 “Billion
Laughs” vulnerability. This copy is most used on Windows and
macOS.
- bpo-43124: Made the internal putcmd function in smtplib
sanitize input for presence of \r and \n characters to avoid
(unlikely) command injection.
- bpo-36384: ipaddress module no longer accepts any leading
zeros in IPv4 address strings. Leading zeros are ambiguous
and interpreted as octal notation by some libraries. For
example the legacy function socket.inet_aton() treats leading
zeros as octal notation. glibc implementation of modern
inet_pton() does not accept any leading zeros. For a while
the ipaddress module used to accept ambiguous leading zeros.
- Refreshed patch:
* decimal-3.8.patch
OBS-URL: https://build.opensuse.org/request/show/915148
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=80
- Update to 3.8.11
* Security
- bpo-44022 (boo#1189241): mod:http.client now avoids
infinitely reading potential HTTP headers after a 100
Continue status response from the server.
- bpo-43882: The presence of newline or tab characters in parts
of a URL could allow some forms of attacks.
Following the controlling specification for URLs defined by
WHATWG urllib.parse() now removes ASCII newlines and tabs
from URLs, preventing such attacks.
- bpo-42800: Audit hooks are now fired for frame.f_code,
traceback.tb_frame, and generator code/frame attribute
access.
* Core and Builtins
- bpo-44070: No longer eagerly makes import filenames absolute,
except for extension modules, which was introduced in 3.8.10.
* Library
- bpo-44061: Fix regression in previous release when calling
pkgutil.iter_modules() with a list of pathlib.Path objects
OBS-URL: https://build.opensuse.org/request/show/911124
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=77
- Security
- bpo-43434: Creating a sqlite3.Connection object now also
produces a sqlite3.connect auditing event. Previously this
event was only produced by sqlite3.connect() calls. Patch
by Erlend E. Aasland.
- bpo-43472: Ensures interpreter-level audit hooks receive
the cpython.PyInterpreterState_New event when called
through the _xxsubinterpreters module.
- bpo-43075: Fix Regular Expression Denial of Service (ReDoS)
vulnerability in urllib.request.AbstractBasicAuthHandler.
The ReDoS-vulnerable regex has quadratic worst-case
complexity and it allows cause a denial of service when
identifying crafted invalid RFCs. This ReDoS issue is on
the client side and needs remote attackers to control the
HTTP server.
- Core and Builtins
- bpo-43105: Importlib now resolves relative paths when
creating module spec objects from file locations.
- bpo-42924: Fix bytearray repetition incorrectly copying
data from the start of the buffer, even if the data is
offset within the buffer (e.g. after reassigning a slice at
the start of the bytearray to a shorter byte string).
- Library
- bpo-43993: Update bundled pip to 21.1.1.
- bpo-43937: Fixed the turtle module working with non-default
root window.
- bpo-43930: Update bundled pip to 21.1 and setuptools to
56.0.0
- bpo-43920: OpenSSL 3.0.0: load_verify_locations() now
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=66
- bpo#42988 (bsc#1183374) CVE-2021-3426: Remove the getfile
feature of the pydoc module which could be abused to read
arbitrary files on the disk (directory traversal
vulnerability). Moreover, even source code of Python modules
can contain sensitive data like passwords. Vulnerability
reported by David Schwörer.
- bpo-43285: ftplib no longer trusts the IP address value
returned from the server in response to the PASV command by
default. This prevents a malicious FTP server from using the
response to probe IPv4 address and port combinations on the
client network.
- Code that requires the former vulnerable behavior may set
a trust_server_pasv_ipv4_address attribute on their
ftplib.FTP instances to True to re-enable it.
- bpo-43439: Add audit hooks for gc.get_objects(),
gc.get_referrers() and gc.get_referents(). Patch by Pablo
Galindo.
- bpo-43660: Fix crash that happens when replacing sys.stderr
with a callable that can remove the object while an exception
is being printed. Patch by Pablo Galindo.
- bpo-35883: Python no longer fails at startup with a fatal
error if a command line argument contains an invalid Unicode
character. The Py_DecodeLocale() function now escapes byte
sequences which would be decoded as Unicode characters
outside the [U+0000; U+10ffff] range.
- bpo-43406: Fix a possible race condition where
PyErr_CheckSignals tries to execute a non-Python signal
handler.
- bpo-35930: Raising an exception raised in a “future” instance
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=62
- bpo#42938 (bsc#1181126): Avoid static buffers when computing
the repr of ctypes.c_double and ctypes.c_longdouble
values. This issue was assigned CVE-2021-3177.
- bpo#42967 (bso#1182379): Fix web cache poisoning
vulnerability by defaulting the query args separator to &,
and allowing the user to choose a custom separator. This
issue was assigned CVE-2021-23336.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python38?expand=0&rev=53
