[3.8] gh-100001: Omit control characters in http.server stderr logs. (GH-100002) (#100033)
* gh-100001: Omit control characters in http.server stderr logs. (GH-100002)
Replace control characters in http.server.BaseHTTPRequestHandler.log_message with an escaped \xHH sequence to avoid causing problems for the terminal the output is printed to.
(cherry picked from commit d8ab0a4dfa48f881b4ac9ab857d2e9de42f72828)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
* also escape \s (backport of PR #100038).
* add versionadded and remove extraneous 'to'
Co-authored-by: Gregory P. Smith <greg@krypto.org>
[3.8] gh-98517: Fix buffer overflows in _sha3 module (GH-98519) (#98527)
This is a port of the applicable part of XKCP's fix [1] for
CVE-2022-37454 and avoids the segmentation fault and the infinite
loop in the test cases published in [2].
[3.8] gh-96710: Make the test timing more lenient for the int/str DoS regression test. (GH-96717) (#98197)
gh-96710: Make the test timing more lenient for the int/str DoS regression test. (GH-96717)
A regression would still absolutely fail and even a flaky pass isn't
harmful as it'd fail most of the time across our N system test runs.
Windows has a low resolution timer and CI systems are prone to odd
timing so this just gives more leeway to avoid flakiness.
(cherry picked from commit 11e3548fd1d3445ccde971d613633b58d73c3016)
Co-authored-by: Gregory P. Smith <greg@krypto.org>
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.
(cherry picked from commit 41351662bcd21672d8ccfa62fe44d72027e6bcf8)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.8] gh-97616: list_resize() checks for integer overflow (GH-97617) (GH-97628)
gh-97616: list_resize() checks for integer overflow (GH-97617)
Fix multiplying a list by an integer (list *= int): detect the
integer overflow when the new allocated length is close to the
maximum size. Issue reported by Jordan Limor.
list_resize() now checks for integer overflow before multiplying the
new allocated length by the list item size (sizeof(PyObject*)).
(cherry picked from commit a5f092f3c469b674b8d9ccbd4e4377230c9ac7cf)
Co-authored-by: Victor Stinner <vstinner@python.org>
[3.8] gh-97612: Fix shell injection in get-remote-certificate.py (GH-97613) (GH-97633)
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. Issue reported and initial fix by
Caleb Shortt.
Remove the Windows code path to send "quit" on stdin to the "openssl
s_client" command: use DEVNULL on all platforms instead.
[3.8] gh-95778: CVE-2020-10735: Prevent DoS by very large int() (#96503)
* Correctly pre-check for int-to-str conversion
Converting a large enough `int` to a decimal string raises `ValueError` as expected. However, the raise comes _after_ the quadratic-time base-conversion algorithm has run to completion. For effective DOS prevention, we need some kind of check before entering the quadratic-time loop. Oops! =)
The quick fix: essentially we catch _most_ values that exceed the threshold up front. Those that slip through will still be on the small side (read: sufficiently fast), and will get caught by the existing check so that the limit remains exact.
The justification for the current check. The C code check is:
```c
max_str_digits / (3 * PyLong_SHIFT) <= (size_a - 11) / 10
```
In GitHub markdown math-speak, writing $M$ for `max_str_digits`, $L$ for `PyLong_SHIFT` and $s$ for `size_a`, that check is:
$$\left\lfloor\frac{M}{3L}\right\rfloor \le \left\lfloor\frac{s - 11}{10}\right\rfloor$$
From this it follows that
$$\frac{M}{3L} < \frac{s-1}{10}$$
hence that
$$\frac{L(s-1)}{M} > \frac{10}{3} > \log_2(10).$$
So
$$2^{L(s-1)} > 10^M.$$
But our input integer $a$ satisfies $|a| \ge 2^{L(s-1)}$, so $|a|$ is larger than $10^M$. This shows that we don't accidentally capture anything _below_ the intended limit in the check.
Co-authored-by: Gregory P. Smith [Google LLC] <greg@krypto.org> Co-authored-by: Christian Heimes <christian@python.org> Co-authored-by: Mark Dickinson <dickinsm@gmail.com>
gh-91172: Create a workflow for verifying bundled pip and setuptools (GH-31885) (GH-94124)
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com> Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
(cherry picked from commit d36954b7ead06daead3dcf9b0dd9f8002eab508f)
gh-87389: Fix an open redirection vulnerability in http.server. (GH-93879) (GH-94094)
Fix an open redirection vulnerability in the `http.server` module when
an URI path starts with `//` that could produce a 301 Location header
with a misleading target. Vulnerability discovered, and logic fix
proposed, by Hamza Avvan (@hamzaavvan).
bpo-31327: Update time documentation to reflect possible errors (GH-31460) (GH-31827)
As per the comments, this mirrors the [datetime documentation](https://docs.python.org/3/library/datetime.htmlGH-datetime.datetime.fromtimestamp).
```
>>> import time
>>> time.localtime(999999999999999999999)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OverflowError: timestamp out of range for platform time_t
>>> time.localtime(-3600)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: [Errno 22] Invalid argument
```
(cherry picked from commit c83fc9c02c9846ec3a2d0123999c98e02f00b3f5)
Ned Deily [Tue, 15 Mar 2022 14:39:20 +0000 (10:39 -0400)]
bpo-45405: Prevent internal configure error when running configure with recent versions of clang. (GH-28845) (GH-31889)
Change the configure logic to function properly on macOS when the compiler
outputs a platform triplet for option --print-multiarch.
The Apple Clang included with Xcode 13.3 now supports --print-multiarch
causing configure to fail without this change.
bpo-46756: Fix authorization check in urllib.request (GH-31353) (GH-31572)
Fix a bug in urllib.request.HTTPPasswordMgr.find_user_password() and
urllib.request.HTTPPasswordMgrWithPriorAuth.is_authenticated() which
allowed to bypass authorization. For example, access to URI "example.org/foobar"
was allowed if the user was authorized for URI "example.org/foo".
(cherry picked from commit e2e72567a1c94c548868f6ee5329363e6036057a)
bpo-46811: Make test suite support Expat >=2.4.5 (GH-31453)
Curly brackets were never allowed in namespace URIs
according to RFC 3986, and so-called namespace-validating
XML parsers have the right to reject them a invalid URIs.
libexpat >=2.4.5 has become strcter in that regard due to
related security issues; with ET.XML instantiating a
namespace-aware parser under the hood, this test has no
future in CPython.
Since `.. module:: contextvars` sets the module using `.. class:: contextvars.Token`, intersphinx records it as `contextvars.contextvars.Token`.
(cherry picked from commit e501d70b347c5093018d12482c30a7a98aab86d0)
bpo-45583: Correct datamodel documentation of int() (GH-29182) (GH-29287)
It should be noted that this part of the documentation is redundant with
function.rst's documentation of int. This one was correctly updated with Python 3.8.
(cherry picked from commit d9c1868c25ec6466e8d8ae21fe9315a8a03836ab)
Co-authored-by: Arthur Milchior <arthur@milchior.fr>
when using the Tk 8.6.11 provided by python.org macOS installers.
Patch by Marc Culler of the Tk project.
(cherry picked from commit be8318be05e1a874215fa75b8845ede74b2c69b6)
bpo-45436: Fix tkinter tests with Tcl/Tk 8.6.11+ (GH-29077) (GH-29093)
Since v8.6.11, a few configuration options seem to accept an empty value
where they did not previously; particularly the `type` of a `Menu`
widget, and the `compound` of any ttk widget with a label. Providing an
explicit expected error message to `checkEnumParam` bypasses the check
of an empty value, which no longer raises `TclError`.
(cherry picked from commit 4fe454c6f54b0948af67b53af6c2f35af6377e69)
bpo-44849: Fix os.set_inheritable() on FreeBSD 14 with O_PATH (GH-27623) (GH-28978)
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.
(cherry picked from commit c24896c0e3b32c8a9f614ef51366007b67d5c665)
Co-authored-by: Victor Stinner <vstinner@python.org>
Add a PID to names of POSIX shared memory objects to allow
running multiprocessing tests (test_multiprocessing_fork,
test_multiprocessing_spawn, etc) in parallel.
Fix test_readline.test_nonascii(): sometimes, the newline character
is not written at the end, so don't expect it in the output.
(cherry picked from commit 797c8eb9ef511f0c25f10a453b35c4d2fe383c30)
Co-authored-by: Victor Stinner <vstinner@python.org>
bpo-44689: ctypes.util.find_library() now finds macOS 11+ system libraries when built on older macOS systems (GH-27251) (GH-28054)
Previously, when built on older macOS systems, `find_library` was not able to find macOS system libraries when running on Big Sur due to changes in how system libraries are stored.
(cherry picked from commit 71853a73024a98aa38a3c0444fe364dbd9709134)
bpo-44394: Update libexpat copy to 2.4.1 (GH-26945) (GH-28033)
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.
projects / thirdparty / Python / cpython.git / log
