- 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filed as CVE-2022-37460, later withdrawn)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
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=118
- Update to 3.9.14:
- (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.
- Also other bug fixes:
- 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.
- 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 binding of unix socket to empty address on Linux to use
an available address from the abstract namespace, instead
of “0”.
- Suppress writing an XML declaration in open files
in ElementTree.write() with encoding='unicode' and
xml_declaration=None.
- Fix the formatting for await x and not x in the operator
precedence table when using the help() system.
- Fix ensurepip environment isolation for subprocess running
pip.
- Fix problem with test_ssl test_get_ciphers on systems that
require perfect forward secrecy (PFS) ciphers.
OBS-URL: https://build.opensuse.org/request/show/1003029
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=34
- (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.
- Also other bug fixes:
- 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.
- 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 binding of unix socket to empty address on Linux to use
an available address from the abstract namespace, instead
of “0”.
- Suppress writing an XML declaration in open files
in ElementTree.write() with encoding='unicode' and
xml_declaration=None.
- Fix the formatting for await x and not x in the operator
precedence table when using the help() system.
- Fix ensurepip environment isolation for subprocess running
pip.
- Fix problem with test_ssl test_get_ciphers on systems that
require perfect forward secrecy (PFS) ciphers.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=116
- Add CVE-2015-20107-mailcap-unsafe-filenames.patch to avoid
CVE-2015-20107 (bsc#1198511, gh#python/cpython#68966), the
command injection in the mailcap module.
- Fix building of documentation and the universal configuration of the
%primary_interpreter.
- (bsc#1196784, CVE-2022-25236) Rename patch:
support-expat-245.patch to support-expat-CVE-2022-25236-patched.patch
and update the patch to detect expat >= 2.4.4 instead of >= 2.4.5
as it was fully patched against CVE-2022-25236.
22.0.4, bnc#1186819, CVE-2021-3572)
OBS-URL: https://build.opensuse.org/request/show/983632
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=30
- Update to 3.9.13:
- Core and Builtins
- gh-92311: Fixed a bug where setting frame.f_lineno to jump
over a list comprehension could misbehave or crash.
- gh-92112: Fix crash triggered by an evil custom mro() on
a metaclass.
- gh-92036: Fix a crash in subinterpreters related to the
garbage collector. When a subinterpreter is deleted,
untrack all objects tracked by its GC. To prevent a crash
in deallocator functions expecting objects to be tracked by
the GC, leak a strong reference to these objects on
purpose, so they are never deleted and their deallocator
functions are not called. Patch by Victor Stinner.
- gh-91421: Fix a potential integer overflow in
_Py_DecodeUTF8Ex.
- bpo-46775: Some Windows system error codes(>= 10000) are
now mapped into the correct errno and may now raise
a subclass of OSError. Patch by Dong-hee Na.
- bpo-46962: Classes and functions that unconditionally
declared their docstrings ignoring the
--without-doc-strings compilation flag no longer do so.
- The classes affected are pickle.PickleBuffer,
testcapi.RecursingInfinitelyError, and types.GenericAlias.
- The functions affected are 24 methods in ctypes.
- Patch by Oleg Iarygin.
- bpo-36819: Fix crashes in built-in encoders with error
handlers that return position less or equal than the
starting position of non-encodable characters.
- Library
- gh-91581: utcfromtimestamp() no longer attempts to resolve
fold in the pure Python implementation, since the fold is
never 1 in UTC. In addition to being slightly faster in the
common case, this also prevents some errors when the
timestamp is close to datetime.min. Patch by Paul Ganssle.
- gh-92530: Fix an issue that occurred after interrupting
threading.Condition.notify().
- gh-92049: Forbid pickling constants re._constants.SUCCESS
etc. Previously, pickling did not fail, but the result
could not be unpickled.
- bpo-47029: Always close the read end of the pipe used by
multiprocessing.Queue after the last write of buffered data
to the write end of the pipe to avoid BrokenPipeError at
garbage collection and at multiprocessing.Queue.close()
calls. Patch by Géry Ogam.
- gh-91910: Add missing f prefix to f-strings in error
messages from the multiprocessing and asyncio modules.
- gh-91810: ElementTree method write() and function
tostring() now use the text file’s encoding (“UTF-8” if not
available) instead of locale encoding in XML declaration
when encoding="unicode" is specified.
- gh-91832: Add required attribute to argparse.Action repr
output.
- gh-91734: Fix OSS audio support on Solaris.
- gh-91700: Compilation of regular expression containing
a conditional expression (?(group)...) now raises an
appropriate re.error if the group number refers to not
defined group. Previously an internal RuntimeError was
raised.
- gh-91676: Fix unittest.IsolatedAsyncioTestCase to shutdown
the per test event loop executor before returning from its
run method so that a not yet stopped or garbage collected
executor state does not persist beyond the test.
- gh-90568: Parsing \N escapes of Unicode Named Character
Sequences in a regular expression raises now re.error
instead of TypeError.
- gh-91595: Fix the comparison of character and integer
inside Tools.gdb.libpython.write_repr(). Patch by Yu Liu.
- gh-90622: Worker processes for
concurrent.futures.ProcessPoolExecutor are no longer
spawned on demand (a feature added in 3.9) when the
multiprocessing context start method is "fork" as that can
lead to deadlocks in the child processes due to a fork
happening while threads are running.
- gh-91575: Update case-insensitive matching in the re module
to the latest Unicode version.
- gh-91581: Remove an unhandled error case in the
C implementation of calls to datetime.fromtimestamp with no
time zone (i.e. getting a local time from an epoch
timestamp). This should have no user-facing effect other
than giving a possibly more accurate error message when
called with timestamps that fall on 10000-01-01 in the
local time. Patch by Paul Ganssle.
- bpo-34480: Fix a bug where _markupbase raised an
UnboundLocalError when an invalid keyword was found in
marked section. Patch by Marek Suscak.
- bpo-27929: Fix asyncio.loop.sock_connect() to only resolve
names for socket.AF_INET or socket.AF_INET6 families.
Resolution may not make sense for other families, like
socket.AF_BLUETOOTH and socket.AF_UNIX.
- bpo-43323: Fix errors in the email module if the charset
itself contains undecodable/unencodable characters.
- bpo-46787: Fix concurrent.futures.ProcessPoolExecutor
exception memory leak
- bpo-46415: Fix ipaddress.ip_{address,interface,network}
raising TypeError instead of ValueError if given invalid
tuple as address parameter.
- bpo-44911: IsolatedAsyncioTestCase will no longer throw an
exception while cancelling leaked tasks. Patch by Bar
Harel.
- bpo-44493: Add missing terminated NUL in sockaddr_un’s
length
- This was potentially observable when using non-abstract
AF_UNIX datagram sockets to processes written in another
programming language.
- bpo-42627: Fix incorrect parsing of Windows registry proxy
settings
- bpo-36073: Raise ProgrammingError instead of segfaulting on
recursive usage of cursors in sqlite3 converters. Patch by
Sergey Fedoseev.
- Documentation
- gh-91888: Add a new gh role to the documentation to link to
GitHub issues.
- gh-91783: Document security issues concerning the use of
the function shutil.unpack_archive()
- gh-91547: Remove “Undocumented modules” page.
- bpo-44347: Clarify the meaning of dirs_exist_ok, a kwarg of
shutil.copytree().
- bpo-38668: Update the introduction to documentation for
os.path to remove warnings that became irrelevant after the
implementations of PEP 383 and PEP 529.
- bpo-47138: Pin Jinja to a version compatible with Sphinx
version 2.4.4.
- bpo-46962: All docstrings in code snippets are now wrapped
into PyDoc_STR() to follow the guideline of PEP 7’s
Documentation Strings paragraph. Patch by Oleg Iarygin.
- bpo-26792: Improve the docstrings of runpy.run_module() and
runpy.run_path(). Original patch by Andrew Brezovsky.
- bpo-45790: Adjust inaccurate phrasing in Defining Extension
Types: Tutorial about the ob_base field and the macros used
to access its contents.
- bpo-42340: Document that in some circumstances
KeyboardInterrupt may cause the code to enter an
inconsistent state. Provided a sample workaround to avoid
it if needed.
- bpo-41233: Link the errnos referenced in
Doc/library/exceptions.rst to their respective section in
Doc/library/errno.rst, and vice versa. Previously this was
only done for EINTR and InterruptedError. Patch by Yan
“yyyyyyyan” Orestes.
- bpo-38056: Overhaul the Error Handlers documentation in
codecs.
- bpo-13553: Document tkinter.Tk args.
- Tests
- gh-91607: Fix test_concurrent_futures to test the correct
multiprocessing start method context in several cases where
the test logic mixed this up.
- bpo-47205: Skip test for sched_getaffinity() and
sched_setaffinity() error case on FreeBSD.
- bpo-29890: Add tests for ipaddress.IPv4Interface and
ipaddress.IPv6Interface construction with tuple arguments.
Original patch and tests by louisom.
- Build
- bpo-47103: Windows PGInstrument builds now copy a required
DLL into the output directory, making it easier to run the
profile stage of a PGO build.
- Windows
- bpo-47194: Update zlib to v1.2.12 to resolve
CVE-2018-25032.
- bpo-46785: Fix race condition between os.stat() and
unlinking a file on Windows, by using errors codes returned
by FindFirstFileW() when appropriate in win32_xstat_impl.
- bpo-40859: Update Windows build to use xz-5.2.5
- Tools/Demos
- gh-91583: Fix regression in the code generated by Argument
Clinic for functions with the defining_class parameter.
- Add patch support-expat-245.patch:
* Support Expat >= 2.4.4 (jsc#SLE-21253)
OBS-URL: https://build.opensuse.org/request/show/978332
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=29
- Core and Builtins
- gh-92311: Fixed a bug where setting frame.f_lineno to jump
over a list comprehension could misbehave or crash.
- gh-92112: Fix crash triggered by an evil custom mro() on
a metaclass.
- gh-92036: Fix a crash in subinterpreters related to the
garbage collector. When a subinterpreter is deleted,
untrack all objects tracked by its GC. To prevent a crash
in deallocator functions expecting objects to be tracked by
the GC, leak a strong reference to these objects on
purpose, so they are never deleted and their deallocator
functions are not called. Patch by Victor Stinner.
- gh-91421: Fix a potential integer overflow in
_Py_DecodeUTF8Ex.
- bpo-46775: Some Windows system error codes(>= 10000) are
now mapped into the correct errno and may now raise
a subclass of OSError. Patch by Dong-hee Na.
- bpo-46962: Classes and functions that unconditionally
declared their docstrings ignoring the
--without-doc-strings compilation flag no longer do so.
- The classes affected are pickle.PickleBuffer,
testcapi.RecursingInfinitelyError, and types.GenericAlias.
- The functions affected are 24 methods in ctypes.
- Patch by Oleg Iarygin.
- bpo-36819: Fix crashes in built-in encoders with error
handlers that return position less or equal than the
starting position of non-encodable characters.
- Library
- gh-91581: utcfromtimestamp() no longer attempts to resolve
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=98
- Update to 3.9.12:
- bpo-46968: Check for the existence of the “sys/auxv.h” header
in faulthandler to avoid compilation problems in systems
where this header doesn’t exist. Patch by Pablo Galindo
- bpo-47101: hashlib.algorithms_available now lists only
algorithms that are provided by activated crypto providers on
OpenSSL 3.0. Legacy algorithms are not listed unless the
legacy provider has been loaded into the default OSSL
context.
- bpo-23691: Protect the re.finditer() iterator from
re-entering.
- bpo-42369: Fix thread safety of zipfile._SharedFile.tell() to
avoid a “zipfile.BadZipFile: Bad CRC-32 for file” exception
when reading a ZipFile from multiple threads.
- bpo-38256: Fix binascii.crc32() when it is compiled to use
zlib’c crc32 to work properly on inputs 4+GiB in length
instead of returning the wrong result. The workaround prior
to this was to always feed the function data in increments
smaller than 4GiB or to just call the zlib module function.
- bpo-39394: A warning about inline flags not at the start of
the regular expression now contains the position of the flag.
- bpo-47061: Deprecate the various modules listed by PEP 594:
- aifc, asynchat, asyncore, audioop, cgi, cgitb, chunk, crypt,
imghdr, msilib, nntplib, nis, ossaudiodev, pipes, smtpd,
sndhdr, spwd, sunau, telnetlib, uu, xdrlib
- bpo-2604: Fix bug where doctests using globals would fail
when run multiple times.
- bpo-45997: Fix asyncio.Semaphore re-aquiring FIFO order.
- bpo-47022: The asynchat, asyncore and smtpd modules have been
deprecated since at least Python 3.6. Their documentation has
OBS-URL: https://build.opensuse.org/request/show/965121
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=28
- bpo-46968: Check for the existence of the “sys/auxv.h” header
in faulthandler to avoid compilation problems in systems
where this header doesn’t exist. Patch by Pablo Galindo
- bpo-47101: hashlib.algorithms_available now lists only
algorithms that are provided by activated crypto providers on
OpenSSL 3.0. Legacy algorithms are not listed unless the
legacy provider has been loaded into the default OSSL
context.
- bpo-23691: Protect the re.finditer() iterator from
re-entering.
- bpo-42369: Fix thread safety of zipfile._SharedFile.tell() to
avoid a “zipfile.BadZipFile: Bad CRC-32 for file” exception
when reading a ZipFile from multiple threads.
- bpo-38256: Fix binascii.crc32() when it is compiled to use
zlib’c crc32 to work properly on inputs 4+GiB in length
instead of returning the wrong result. The workaround prior
to this was to always feed the function data in increments
smaller than 4GiB or to just call the zlib module function.
- bpo-39394: A warning about inline flags not at the start of
the regular expression now contains the position of the flag.
- bpo-47061: Deprecate the various modules listed by PEP 594:
- aifc, asynchat, asyncore, audioop, cgi, cgitb, chunk, crypt,
imghdr, msilib, nntplib, nis, ossaudiodev, pipes, smtpd,
sndhdr, spwd, sunau, telnetlib, uu, xdrlib
- bpo-2604: Fix bug where doctests using globals would fail
when run multiple times.
- bpo-45997: Fix asyncio.Semaphore re-aquiring FIFO order.
- bpo-47022: The asynchat, asyncore and smtpd modules have been
deprecated since at least Python 3.6. Their documentation has
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=96
- Update to 3.9.9:
* Core and Builtins
+ bpo-30570: Fixed a crash in issubclass() from infinite recursion when searching pathological __bases__ tuples.
+ bpo-45494: Fix parser crash when reporting errors involving invalid continuation characters. Patch by Pablo Galindo.
+ bpo-45385: Fix reference leak from descr_check. Patch by Dong-hee Na.
+ bpo-45167: Fix deepcopying of types.GenericAlias objects.
+ bpo-44219: Release the GIL while performing isatty system calls on arbitrary file descriptors. In particular, this affects os.isatty(), os.device_encoding() and io.TextIOWrapper. By extension, io.open() in text mode is also affected. This change solves a deadlock in os.isatty(). Patch by Vincent Michel in bpo-44219.
+ bpo-44959: Added fallback to extension modules with ‘.sl’ suffix on HP-UX
+ bpo-44050: Extensions that indicate they use global state (by setting m_size to -1) can again be used in multiple interpreters. This reverts to behavior of Python 3.8.
+ bpo-45121: Fix issue where Protocol.__init__ raises RecursionError when it’s called directly or via super(). Patch provided by Yurii Karabas.
+ bpo-45083: When the interpreter renders an exception, its name now has a complete qualname. Previously only the class name was concatenated to the module name, which sometimes resulted in an incorrect full name being displayed.
+ bpo-45738: Fix computation of error location for invalid continuation characters in the parser. Patch by Pablo Galindo.
+ Library
+ bpo-45678: Fix bug in Python 3.9 that meant functools.singledispatchmethod failed to properly wrap the attributes of the target method. Patch by Alex Waygood.
+ bpo-45679: Fix caching of multi-value typing.Literal. Literal[True, 2] is no longer equal to Literal[1, 2].
+ bpo-45438: Fix typing.Signature string representation for generic builtin types.
+ bpo-45581: sqlite3.connect() now correctly raises MemoryError if the underlying SQLite API signals memory error. Patch by Erlend E. Aasland.
+ bpo-39679: Fix bug in functools.singledispatchmethod that caused it to fail when attempting to register a classmethod() or staticmethod() using type annotations. Patch contributed by Alex Waygood.
+ bpo-45515: Add references to zoneinfo in the datetime documentation, mostly replacing outdated references to dateutil.tz. Change by Paul Ganssle.
+ bpo-45467: Fix incremental decoder and stream reader in the “raw-unicode-escape” codec. Previously they failed if the escape sequence was split.
+ bpo-45461: Fix incremental decoder and stream reader in the “unicode-escape” codec. Previously they failed if the escape sequence was split.
+ bpo-45239: Fixed email.utils.parsedate_tz() crashing with UnboundLocalError on certain invalid input instead of returning None. Patch by Ben Hoyt.
+ bpo-44904: Fix bug in the doctest module that caused it to fail if a docstring included an example with a classmethod property. Patch by Alex Waygood.
+ bpo-45406: Make inspect.getmodule() catch FileNotFoundError raised by :’func:inspect.getabsfile, and return None to indicate that the module could not be determined.
+ bpo-45262: Prevent use-after-free in asyncio. Make sure the cached running loop holder gets cleared on dealloc to prevent use-after-free in get_running_loop
+ bpo-45386: Make xmlrpc.client more robust to C runtimes where the underlying C strftime function results in a ValueError when testing for year formatting options.
+ bpo-45371: Fix clang rpath issue in distutils. The UnixCCompiler now uses correct clang option to add a runtime library directory (rpath) to a shared library.
+ bpo-20028: Improve error message of csv.Dialect when initializing. Patch by Vajrasky Kok and Dong-hee Na.
+ bpo-45343: Update bundled pip to 21.2.4 and setuptools to 58.1.0
+ bpo-41710: On Unix, if the sem_clockwait() function is available in the C library (glibc 2.30 and newer), the threading.Lock.acquire() method now uses the monotonic clock (time.CLOCK_MONOTONIC) for the timeout, rather than using the system clock (time.CLOCK_REALTIME), to not be affected by system clock changes. Patch by Victor Stinner.
OBS-URL: https://build.opensuse.org/request/show/931924
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=24
* Core and Builtins
+ bpo-30570: Fixed a crash in issubclass() from infinite recursion when searching pathological __bases__ tuples.
+ bpo-45494: Fix parser crash when reporting errors involving invalid continuation characters. Patch by Pablo Galindo.
+ bpo-45385: Fix reference leak from descr_check. Patch by Dong-hee Na.
+ bpo-45167: Fix deepcopying of types.GenericAlias objects.
+ bpo-44219: Release the GIL while performing isatty system calls on arbitrary file descriptors. In particular, this affects os.isatty(), os.device_encoding() and io.TextIOWrapper. By extension, io.open() in text mode is also affected. This change solves a deadlock in os.isatty(). Patch by Vincent Michel in bpo-44219.
+ bpo-44959: Added fallback to extension modules with ‘.sl’ suffix on HP-UX
+ bpo-44050: Extensions that indicate they use global state (by setting m_size to -1) can again be used in multiple interpreters. This reverts to behavior of Python 3.8.
+ bpo-45121: Fix issue where Protocol.__init__ raises RecursionError when it’s called directly or via super(). Patch provided by Yurii Karabas.
+ bpo-45083: When the interpreter renders an exception, its name now has a complete qualname. Previously only the class name was concatenated to the module name, which sometimes resulted in an incorrect full name being displayed.
+ bpo-45738: Fix computation of error location for invalid continuation characters in the parser. Patch by Pablo Galindo.
+ Library
+ bpo-45678: Fix bug in Python 3.9 that meant functools.singledispatchmethod failed to properly wrap the attributes of the target method. Patch by Alex Waygood.
+ bpo-45679: Fix caching of multi-value typing.Literal. Literal[True, 2] is no longer equal to Literal[1, 2].
+ bpo-45438: Fix typing.Signature string representation for generic builtin types.
+ bpo-45581: sqlite3.connect() now correctly raises MemoryError if the underlying SQLite API signals memory error. Patch by Erlend E. Aasland.
+ bpo-39679: Fix bug in functools.singledispatchmethod that caused it to fail when attempting to register a classmethod() or staticmethod() using type annotations. Patch contributed by Alex Waygood.
+ bpo-45515: Add references to zoneinfo in the datetime documentation, mostly replacing outdated references to dateutil.tz. Change by Paul Ganssle.
+ bpo-45467: Fix incremental decoder and stream reader in the “raw-unicode-escape” codec. Previously they failed if the escape sequence was split.
+ bpo-45461: Fix incremental decoder and stream reader in the “unicode-escape” codec. Previously they failed if the escape sequence was split.
+ bpo-45239: Fixed email.utils.parsedate_tz() crashing with UnboundLocalError on certain invalid input instead of returning None. Patch by Ben Hoyt.
+ bpo-44904: Fix bug in the doctest module that caused it to fail if a docstring included an example with a classmethod property. Patch by Alex Waygood.
+ bpo-45406: Make inspect.getmodule() catch FileNotFoundError raised by :’func:inspect.getabsfile, and return None to indicate that the module could not be determined.
+ bpo-45262: Prevent use-after-free in asyncio. Make sure the cached running loop holder gets cleared on dealloc to prevent use-after-free in get_running_loop
+ bpo-45386: Make xmlrpc.client more robust to C runtimes where the underlying C strftime function results in a ValueError when testing for year formatting options.
+ bpo-45371: Fix clang rpath issue in distutils. The UnixCCompiler now uses correct clang option to add a runtime library directory (rpath) to a shared library.
+ bpo-20028: Improve error message of csv.Dialect when initializing. Patch by Vajrasky Kok and Dong-hee Na.
+ bpo-45343: Update bundled pip to 21.2.4 and setuptools to 58.1.0
+ bpo-41710: On Unix, if the sem_clockwait() function is available in the C library (glibc 2.30 and newer), the threading.Lock.acquire() method now uses the monotonic clock (time.CLOCK_MONOTONIC) for the timeout, rather than using the system clock (time.CLOCK_REALTIME), to not be affected by system clock changes. Patch by Victor Stinner.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=87
- bpo-44022 (bsc#1189241, CVE-2021-3737): http.client now
avoids infinitely reading potential HTTP headers after
a 100 Continue status response from the server.
- bpo-43075 (CVE-2021-3733, bsc#1189287): 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.
OBS-URL: https://build.opensuse.org/request/show/919259
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/python39?expand=0&rev=22
- Security
- Replaced usage of tempfile.mktemp() with TemporaryDirectory
to avoid a potential race condition.
- Add auditing events to the marshal module, and stop raising
code.__init__ events for every unmarshalled code object.
Directly instantiated code objects will continue to raise
an event, and audit event handlers should inspect or
collect the raw marshal data. This reduces a significant
performance overhead when loading from .pyc files.
- Made the internal putcmd function in smtplib sanitize input
for presence of \r and \n characters to avoid (unlikely)
command injection.
- Core and Builtins
- Fixed pickling of range iterators that iterated for over
2**32 times.
- Fix a race in WeakKeyDictionary, WeakValueDictionary and
WeakSet when two threads attempt to commit the last pending
removal. This fixes asyncio.create_task and fixes a data
loss in asyncio.run where shutdown_asyncgens is not run
- Fixed a corner case bug where the result of
float.fromhex('0x.8p-1074') was rounded the wrong way.
- Refine the syntax error for trailing commas in import
statements. Patch by Pablo Galindo.
- Restore behaviour of complex exponentiation with
integer-valued exponent of type float or complex.
- Correct the ast locations of f-strings with format specs
and repeated expressions. Patch by Pablo Galindo
- Use new trashcan macros (Py_TRASHCAN_BEGIN/END) in
frameobject.c instead of the old ones
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=83
