- Security
- gh-115398: Allow controlling Expat >=2.6.0 reparse deferral
(CVE-2023-52425) by adding five new methods:
xml.etree.ElementTree.XMLParser.flush()
xml.etree.ElementTree.XMLPullParser.flush()
xml.parsers.expat.xmlparser.GetReparseDeferralEnabled()
xml.parsers.expat.xmlparser.SetReparseDeferralEnabled()
xml.sax.expatreader.ExpatParser.flush()
- gh-115399: Update bundled libexpat to 2.6.0
- gh-113659: Skip .pth files with names starting with a dot
or hidden file attribute.
- Core and Builtins
- gh-102388: Fix a bug where iso2022_jp_3 and iso2022_jp_2004
codecs read out of bounds
- Library
- gh-115197: urllib.request no longer resolves the hostname
before checking it against the system’s proxy bypass list
on macOS and Windows.
- gh-115133: Fix tests for XMLPullParser with Expat 2.6.0.
- gh-81194: Fix a crash in socket.if_indextoname() with
specific value (UINT_MAX). Fix an integer overflow in
socket.if_indextoname() on 64-bit non-Windows platforms.
- gh-109858: Protect zipfile from “quoted-overlap”
zipbomb. It now raises BadZipFile when try to read an entry
that overlaps with other entry or central directory.
- gh-107077: Seems that in some conditions, OpenSSL will
return SSL_ERROR_SYSCALL instead of SSL_ERROR_SSL
when a certification verification has failed, but
the error parameters will still contain ERR_LIB_SSL
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=176
of ssl.SSLSocket were vulnerable to a bypass of the TLS
handshake and included protections (like certificate
verification) and treating sent unencrypted data as if it
were post-handshake TLS encrypted data. Security issue
reported as CVE-2023-40217 by Aapo Oksman. Patch by Gregory
P. Smith.
- Update to 3.9.17 (bsc#1212015):
* Support Expat >= 2.4.4 (jsc#SLE-21253, CVE-2022-25236)
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=165
- gh-108310: Fixed an issue where instances of ssl.SSLSocket were
vulnerable to a bypass of the TLS handshake and included
protections (like certificate verification) and treating sent
unencrypted data as if it were post-handshake TLS encrypted data.
Security issue reported as CVE-2023-40217 by Aapo Oksman. Patch by
Gregory P. Smith.
- gh-107845: tarfile.data_filter() now takes the location of
symlinks into account when determining their target, so it will no
longer reject some valid tarballs with
LinkOutsideDestinationError.
- gh-107565: Update multissltests and GitHub CI workflows to use
OpenSSL 1.1.1v, 3.0.10, and 3.1.2.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=163
- Add Revert-gh105127-left-tests.patch (gh#python/cpython!106941)
partially reverting CVE-2023-27043-email-parsing-errors.patch,
because of the regression in gh#python/cpython#106669.
- (bsc#1210638, CVE-2023-27043) Add
CVE-2023-27043-email-parsing-errors.patch, which detects email
address parsing errors and returns empty tuple to indicate the
parsing error (old API). (The patch is faulty,
gh#python/cpython#106669, but upstream decided not to just
revert it).
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=161
- gh-103142: The version of OpenSSL used in Windows and
Mac installers has been upgraded to 1.1.1u to address
CVE-2023-2650, CVE-2023-0465, CVE-2023-0466, CVE-2023-0464,
as well as CVE-2023-0286, CVE-2022-4303, and CVE-2022-4303
fixed previously in 1.1.1t (gh-101727).
- gh-102153: urllib.parse.urlsplit() now strips leading C0
control and space characters following the specification for
URLs defined by WHATWG in response to CVE-2023-24329
(bsc#1208471).
- gh-99889: Fixed a security in flaw in uu.decode() that could
allow for directory traversal based on the input if no
out_file was specified.
- gh-104049: Do not expose the local on-disk
location in directory indexes produced by
http.client.SimpleHTTPRequestHandler.
- gh-101283: subprocess.Popen now uses a safer approach to find
cmd.exe when launching with shell=True.
- gh-103935: trace.__main__ now uses io.open_code() for files
to be executed instead of raw open().
- gh-102953: The extraction methods in tarfile, and
shutil.unpack_archive(), have a new filter argument that
allows limiting tar features than may be surprising or
dangerous, such as creating files outside the destination
directory. See Extraction filters for details (fixing
CVE-2007-4559, bsc#1203750).
- gh-102126: Fixed a deadlock at shutdown when clearing thread
states if any finalizer tries to acquire the runtime head
lock.
- gh-100892: Fixed a crash due to a race while iterating over
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=147
- 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-2015-20107).
- Update bundled libexpat to 2.5.0
- Port XKCP’s fix for the buffer overflows in SHA-3
(CVE-2022-37454).
- On Linux the multiprocessing module returns to using
filesystem backed unix domain sockets for communication with
the forkserver process instead of the Linux abstract socket
namespace. Only code that chooses to use the “forkserver”
start method is affected.
Abstract sockets have no permissions and could allow any
user on the system in the same network namespace (often
the whole system) to inject code into the multiprocessing
forkserver process. This was a potential privilege
escalation. Filesystem based socket permissions restrict this
to the forkserver process user as was the default in Python
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python39?expand=0&rev=126
- 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
- (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
