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Gregory P. Smith 8f0fa4bd10
[3.10] gh-95778: CVE-2020-10735: Prevent DoS by very large int() (#96501) 
Integer to and from text conversions via CPython's bignum `int` type is not safe against denial of service attacks due to malicious input. Very large input strings with hundred thousands of digits can consume several CPU seconds.

This PR comes fresh from a pile of work done in our private PSRT security response team repo.

This backports https://github.com/python/cpython/pull/96499 aka 511ca94520

Signed-off-by: Christian Heimes [Red Hat] <christian@python.org>
Tons-of-polishing-up-by: Gregory P. Smith [Google] <greg@krypto.org>
Reviews via the private PSRT repo via many others (see the NEWS entry in the PR).

<!-- gh-issue-number: gh-95778 -->
* Issue: gh-95778
<!-- /gh-issue-number -->

I wrote up [a one pager for the release managers](https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y/edit#).
2022-09-02 09:51:49 -07:00
..
NEWS.d [3.10] gh-95778: CVE-2020-10735: Prevent DoS by very large int() (#96501) 2022-09-02 09:51:49 -07:00
ACKS GH-96179: Fix misleading example on the bisect documentation (GH-96228) 2022-08-24 08:55:45 -07:00
coverity_model.c bpo-35808: Retire pgen and use pgen2 to generate the parser (GH-11814) 2019-03-01 15:34:44 -08:00
gdbinit gdbinit: Use proper define syntax (GH-19557) 2020-04-23 05:49:26 -07:00
HISTORY bpo-44740: Make minor edits to lowercasing "internet" and "web". (GH-27385) (#27386) 2021-07-27 11:20:11 +02:00
indent.pro
Porting bpo-30737: Update DevGuide links to new URL (GH-3228) 2017-08-30 09:37:43 -07:00
python-config.in bpo-38468 : Refactor python-config (#16749) 2019-10-15 11:18:47 -03:00
python-config.sh.in bpo-37925: Mention --embed in python-config usage (GH-15458) 2019-08-26 23:45:36 +02:00
python-embed.pc.in bpo-36721: Add --embed option to python-config (GH-13500) 2019-05-23 03:30:23 +02:00
python-wing3.wpr Mark files as executable that are meant as scripts. (GH-15354) 2019-09-09 07:16:33 -07:00
python-wing4.wpr Mark files as executable that are meant as scripts. (GH-15354) 2019-09-09 07:16:33 -07:00
python-wing5.wpr Mark files as executable that are meant as scripts. (GH-15354) 2019-09-09 07:16:33 -07:00
python.man [3.10] gh-93217: fix some issues in man page and --help (GH-93219) (#93261) 2022-05-29 14:04:23 -04:00
python.pc.in bpo-36721: Add --embed option to python-config (GH-13500) 2019-05-23 03:30:23 +02:00
README bpo-32159: Revert Misc/svnmap.txt (#4639) 2017-11-29 18:58:33 +01:00
README.AIX bpo-42087: Remove support for AIX 5.3 and below (GH-22830) 2020-11-16 16:16:10 +01:00
README.coverity
README.valgrind closes bpo-38522 docs: remove references to Py_USING_MEMORY_DEBUGGER (GH-30284) (GH-30295) 2021-12-29 17:01:17 -06:00
requirements-test.txt Update tzdata to 2020.3 (GH-22856) 2020-10-21 06:40:43 -07:00
SpecialBuilds.txt bpo-43774: Remove unused PYMALLOC_DEBUG macro (GH-25711) 2021-04-29 10:47:47 +02:00
stable_abi.txt gh-91271: Document which parts of structs are in limited API/stable ABI (GH-32196) (GH-95711) 2022-08-05 17:30:51 +02:00
svnmap.txt bpo-32159: Revert Misc/svnmap.txt (#4639) 2017-11-29 18:58:33 +01:00
valgrind-python.supp bpo-35561: Supress valgrind false alarm on epoll_ctl(event) (GH-18060) 2020-01-19 23:38:37 +01:00
vgrindefs

README 

Python Misc subdirectory
========================

This directory contains files that wouldn't fit in elsewhere.  Some
documents are only of historic importance.

Files found here
----------------

ACKS                    Acknowledgements
gdbinit                 Handy stuff to put in your .gdbinit file, if you use gdb
HISTORY                 News from previous releases -- oldest last
indent.pro              GNU indent profile approximating my C style
NEWS                    News for this release (for some meaning of "this")
Porting                 Mini-FAQ on porting to new platforms
python-config.in        Python script template for python-config
python.man              UNIX man page for the python interpreter
python.pc.in            Package configuration info template for pkg-config
python-wing*.wpr        Wing IDE project file
README                  The file you're reading now
README.AIX              Information about using Python on AIX
README.coverity         Information about running Coverity's Prevent on Python
README.valgrind         Information for Valgrind users, see valgrind-python.supp
SpecialBuilds.txt       Describes extra symbols you can set for debug builds
svnmap.txt              Map of old SVN revs and branches to hg changeset ids,
                        help history-digging
valgrind-python.supp    Valgrind suppression file, see README.valgrind
vgrindefs               Python configuration for vgrind (a generic pretty printer)