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Update to 3.11.15

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Tomáš Hrnčiar 2026-03-03 14:32:28 +01:00
commit 46ace4ef14
6 changed files with 8 additions and 419 deletions
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2
00462-fix-pyssl_seterror-handling-ssl_error_syscall.patch
View file

@ -84,7 +84,7 @@ index 0000000000..75d926ab59
+Fix the :mod:`ssl` module error handling of connection terminate by peer.
+It now throws an OSError with the appropriate error code instead of an EOFError.
diff --git a/Modules/_ssl.c b/Modules/_ssl.c
index 09207abde1..787c241133 100644
index 6275d94d64..ee7b131920 100644
--- a/Modules/_ssl.c
+++ b/Modules/_ssl.c
@@ -576,7 +576,7 @@ PySSL_ChainExceptions(PySSLSocket *sslsock) {

140
00471-cve-2025-12084.patch
View file

@ -1,140 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
<31488909+miss-islington@users.noreply.github.com>
Date: Mon, 22 Dec 2025 14:48:49 +0100
Subject: 00471: CVE-2025-12084
* gh-142145: Remove quadratic behavior in node ID cache clearing (GH-142146)
* gh-142754: Ensure that Element & Attr instances have the ownerDocument attribute (GH-142794)
(cherry picked from commit 1cc7551b3f9f71efbc88d96dce90f82de98b2454)
(cherry picked from commit 08d8e18ad81cd45bc4a27d6da478b51ea49486e4)
(cherry picked from commit 8d2d7bb2e754f8649a68ce4116271a4932f76907)
Co-authored-by: Jacob Walls <38668450+jacobtylerwalls@users.noreply.github.com>
Co-authored-by: Seth Michael Larson <seth@python.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <68491+gpshead@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
---
Lib/test/test_minidom.py | 33 ++++++++++++++++++-
Lib/xml/dom/minidom.py | 11 ++-----
...-12-01-09-36-45.gh-issue-142145.tcAUhg.rst | 6 ++++
3 files changed, 41 insertions(+), 9 deletions(-)
create mode 100644 Misc/NEWS.d/next/Security/2025-12-01-09-36-45.gh-issue-142145.tcAUhg.rst
diff --git a/Lib/test/test_minidom.py b/Lib/test/test_minidom.py
index ef38c36210..c68bd990f7 100644
--- a/Lib/test/test_minidom.py
+++ b/Lib/test/test_minidom.py
@@ -2,6 +2,7 @@
import copy
import pickle
+import time
import io
from test import support
import unittest
@@ -9,7 +10,7 @@
import pyexpat
import xml.dom.minidom
-from xml.dom.minidom import parse, Attr, Node, Document, parseString
+from xml.dom.minidom import parse, Attr, Node, Document, Element, parseString
from xml.dom.minidom import getDOMImplementation
from xml.parsers.expat import ExpatError
@@ -177,6 +178,36 @@ def testAppendChild(self):
self.confirm(dom.documentElement.childNodes[-1].data == "Hello")
dom.unlink()
+ @support.requires_resource('cpu')
+ def testAppendChildNoQuadraticComplexity(self):
+ impl = getDOMImplementation()
+
+ newdoc = impl.createDocument(None, "some_tag", None)
+ top_element = newdoc.documentElement
+ children = [newdoc.createElement(f"child-{i}") for i in range(1, 2 ** 15 + 1)]
+ element = top_element
+
+ start = time.monotonic()
+ for child in children:
+ element.appendChild(child)
+ element = child
+ end = time.monotonic()
+
+ # This example used to take at least 30 seconds.
+ # Conservative assertion due to the wide variety of systems and
+ # build configs timing based tests wind up run under.
+ # A --with-address-sanitizer --with-pydebug build on a rpi5 still
+ # completes this loop in <0.5 seconds.
+ self.assertLess(end - start, 4)
+
+ def testSetAttributeNodeWithoutOwnerDocument(self):
+ # regression test for gh-142754
+ elem = Element("test")
+ attr = Attr("id")
+ attr.value = "test-id"
+ elem.setAttributeNode(attr)
+ self.assertEqual(elem.getAttribute("id"), "test-id")
+
def testAppendChildFragment(self):
dom, orig, c1, c2, c3, frag = self._create_fragment_test_nodes()
dom.documentElement.appendChild(frag)
diff --git a/Lib/xml/dom/minidom.py b/Lib/xml/dom/minidom.py
index ef8a159833..cada981f39 100644
--- a/Lib/xml/dom/minidom.py
+++ b/Lib/xml/dom/minidom.py
@@ -292,13 +292,6 @@ def _append_child(self, node):
childNodes.append(node)
node.parentNode = self
-def _in_document(node):
- # return True iff node is part of a document tree
- while node is not None:
- if node.nodeType == Node.DOCUMENT_NODE:
- return True
- node = node.parentNode
- return False
def _write_data(writer, data):
"Writes datachars to writer."
@@ -355,6 +348,7 @@ class Attr(Node):
def __init__(self, qName, namespaceURI=EMPTY_NAMESPACE, localName=None,
prefix=None):
self.ownerElement = None
+ self.ownerDocument = None
self._name = qName
self.namespaceURI = namespaceURI
self._prefix = prefix
@@ -680,6 +674,7 @@ class Element(Node):
def __init__(self, tagName, namespaceURI=EMPTY_NAMESPACE, prefix=None,
localName=None):
+ self.ownerDocument = None
self.parentNode = None
self.tagName = self.nodeName = tagName
self.prefix = prefix
@@ -1539,7 +1534,7 @@ def _clear_id_cache(node):
if node.nodeType == Node.DOCUMENT_NODE:
node._id_cache.clear()
node._id_search_stack = None
- elif _in_document(node):
+ elif node.ownerDocument:
node.ownerDocument._id_cache.clear()
node.ownerDocument._id_search_stack= None
diff --git a/Misc/NEWS.d/next/Security/2025-12-01-09-36-45.gh-issue-142145.tcAUhg.rst b/Misc/NEWS.d/next/Security/2025-12-01-09-36-45.gh-issue-142145.tcAUhg.rst
new file mode 100644
index 0000000000..05c7df35d1
--- /dev/null
+++ b/Misc/NEWS.d/next/Security/2025-12-01-09-36-45.gh-issue-142145.tcAUhg.rst
@@ -0,0 +1,6 @@
+Remove quadratic behavior in ``xml.minidom`` node ID cache clearing. In order
+to do this without breaking existing users, we also add the *ownerDocument*
+attribute to :mod:`xml.dom.minidom` elements and attributes created by directly
+instantiating the ``Element`` or ``Attr`` class. Note that this way of creating
+nodes is not supported; creator functions like
+:py:meth:`xml.dom.Document.documentElement` should be used instead.

156
00472-cve-2025-13836.patch
View file

@ -1,156 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Mon, 1 Dec 2025 17:26:07 +0200
Subject: 00472: CVE-2025-13836
gh-119451: Fix a potential denial of service in http.client (GH-119454)
Reading the whole body of the HTTP response could cause OOM if
the Content-Length value is too large even if the server does not send
a large amount of data. Now the HTTP client reads large data by chunks,
therefore the amount of consumed memory is proportional to the amount
of sent data.
(cherry picked from commit 5a4c4a033a4a54481be6870aa1896fad732555b5)
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
---
Lib/http/client.py | 28 ++++++--
Lib/test/test_httplib.py | 66 +++++++++++++++++++
...-05-23-11-47-48.gh-issue-119451.qkJe9-.rst | 5 ++
3 files changed, 95 insertions(+), 4 deletions(-)
create mode 100644 Misc/NEWS.d/next/Security/2024-05-23-11-47-48.gh-issue-119451.qkJe9-.rst
diff --git a/Lib/http/client.py b/Lib/http/client.py
index 91ee1b470c..c977612732 100644
--- a/Lib/http/client.py
+++ b/Lib/http/client.py
@@ -111,6 +111,11 @@
_MAXLINE = 65536
_MAXHEADERS = 100
+# Data larger than this will be read in chunks, to prevent extreme
+# overallocation.
+_MIN_READ_BUF_SIZE = 1 << 20
+
+
# Header name/value ABNF (http://tools.ietf.org/html/rfc7230#section-3.2)
#
# VCHAR = %x21-7E
@@ -635,10 +640,25 @@ def _safe_read(self, amt):
reading. If the bytes are truly not available (due to EOF), then the
IncompleteRead exception can be used to detect the problem.
"""
- data = self.fp.read(amt)
- if len(data) < amt:
- raise IncompleteRead(data, amt-len(data))
- return data
+ cursize = min(amt, _MIN_READ_BUF_SIZE)
+ data = self.fp.read(cursize)
+ if len(data) >= amt:
+ return data
+ if len(data) < cursize:
+ raise IncompleteRead(data, amt - len(data))
+
+ data = io.BytesIO(data)
+ data.seek(0, 2)
+ while True:
+ # This is a geometric increase in read size (never more than
+ # doubling out the current length of data per loop iteration).
+ delta = min(cursize, amt - cursize)
+ data.write(self.fp.read(delta))
+ if data.tell() >= amt:
+ return data.getvalue()
+ cursize += delta
+ if data.tell() < cursize:
+ raise IncompleteRead(data.getvalue(), amt - data.tell())
def _safe_readinto(self, b):
"""Same as _safe_read, but for reading into a buffer."""
diff --git a/Lib/test/test_httplib.py b/Lib/test/test_httplib.py
index 8b9d49ec09..55363413b3 100644
--- a/Lib/test/test_httplib.py
+++ b/Lib/test/test_httplib.py
@@ -1390,6 +1390,72 @@ def run_server():
thread.join()
self.assertEqual(result, b"proxied data\n")
+ def test_large_content_length(self):
+ serv = socket.create_server((HOST, 0))
+ self.addCleanup(serv.close)
+
+ def run_server():
+ [conn, address] = serv.accept()
+ with conn:
+ while conn.recv(1024):
+ conn.sendall(
+ b"HTTP/1.1 200 Ok\r\n"
+ b"Content-Length: %d\r\n"
+ b"\r\n" % size)
+ conn.sendall(b'A' * (size//3))
+ conn.sendall(b'B' * (size - size//3))
+
+ thread = threading.Thread(target=run_server)
+ thread.start()
+ self.addCleanup(thread.join, 1.0)
+
+ conn = client.HTTPConnection(*serv.getsockname())
+ try:
+ for w in range(15, 27):
+ size = 1 << w
+ conn.request("GET", "/")
+ with conn.getresponse() as response:
+ self.assertEqual(len(response.read()), size)
+ finally:
+ conn.close()
+ thread.join(1.0)
+
+ def test_large_content_length_truncated(self):
+ serv = socket.create_server((HOST, 0))
+ self.addCleanup(serv.close)
+
+ def run_server():
+ while True:
+ [conn, address] = serv.accept()
+ with conn:
+ conn.recv(1024)
+ if not size:
+ break
+ conn.sendall(
+ b"HTTP/1.1 200 Ok\r\n"
+ b"Content-Length: %d\r\n"
+ b"\r\n"
+ b"Text" % size)
+
+ thread = threading.Thread(target=run_server)
+ thread.start()
+ self.addCleanup(thread.join, 1.0)
+
+ conn = client.HTTPConnection(*serv.getsockname())
+ try:
+ for w in range(18, 65):
+ size = 1 << w
+ conn.request("GET", "/")
+ with conn.getresponse() as response:
+ self.assertRaises(client.IncompleteRead, response.read)
+ conn.close()
+ finally:
+ conn.close()
+ size = 0
+ conn.request("GET", "/")
+ conn.close()
+ thread.join(1.0)
+
def test_putrequest_override_domain_validation(self):
"""
It should be possible to override the default validation
diff --git a/Misc/NEWS.d/next/Security/2024-05-23-11-47-48.gh-issue-119451.qkJe9-.rst b/Misc/NEWS.d/next/Security/2024-05-23-11-47-48.gh-issue-119451.qkJe9-.rst
new file mode 100644
index 0000000000..6d6f25cd2f
--- /dev/null
+++ b/Misc/NEWS.d/next/Security/2024-05-23-11-47-48.gh-issue-119451.qkJe9-.rst
@@ -0,0 +1,5 @@
+Fix a potential memory denial of service in the :mod:`http.client` module.
+When connecting to a malicious server, it could cause
+an arbitrary amount of memory to be allocated.
+This could have led to symptoms including a :exc:`MemoryError`, swapping, out
+of memory (OOM) killed processes or containers, or even system crashes.

90
00473-cve-2026-0865.patch
View file

@ -1,90 +0,0 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Seth Michael Larson <seth@python.org>
Date: Sat, 17 Jan 2026 11:46:21 -0600
Subject: 00473: CVE-2026-0865
gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917)
* Add 'test.support' fixture for C0 control characters
* gh-143916: Reject control characters in wsgiref.headers.Headers
---
Lib/test/support/__init__.py | 7 +++++++
Lib/test/test_wsgiref.py | 12 +++++++++++-
Lib/wsgiref/headers.py | 3 +++
.../2026-01-16-11-07-36.gh-issue-143916.dpWeOD.rst | 2 ++
4 files changed, 23 insertions(+), 1 deletion(-)
create mode 100644 Misc/NEWS.d/next/Security/2026-01-16-11-07-36.gh-issue-143916.dpWeOD.rst
diff --git a/Lib/test/support/__init__.py b/Lib/test/support/__init__.py
index 79e3d1c642..9270f3f8d6 100644
--- a/Lib/test/support/__init__.py
+++ b/Lib/test/support/__init__.py
@@ -2282,3 +2282,10 @@ def copy_python_src_ignore(path, names):
#Windows doesn't have os.uname() but it doesn't support s390x.
skip_on_s390x = unittest.skipIf(hasattr(os, 'uname') and os.uname().machine == 's390x',
'skipped on s390x')
+
+
+def control_characters_c0() -> list[str]:
+ """Returns a list of C0 control characters as strings.
+ C0 control characters defined as the byte range 0x00-0x1F, and 0x7F.
+ """
+ return [chr(c) for c in range(0x00, 0x20)] + ["\x7F"]
diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index 9316d0ecbc..28e3656632 100644
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -1,6 +1,6 @@
from unittest import mock
from test import support
-from test.support import socket_helper
+from test.support import socket_helper, control_characters_c0
from test.test_httpservers import NoLogRequestHandler
from unittest import TestCase
from wsgiref.util import setup_testing_defaults
@@ -503,6 +503,16 @@ def testExtras(self):
'\r\n'
)
+ def testRaisesControlCharacters(self):
+ headers = Headers()
+ for c0 in control_characters_c0():
+ self.assertRaises(ValueError, headers.__setitem__, f"key{c0}", "val")
+ self.assertRaises(ValueError, headers.__setitem__, "key", f"val{c0}")
+ self.assertRaises(ValueError, headers.add_header, f"key{c0}", "val", param="param")
+ self.assertRaises(ValueError, headers.add_header, "key", f"val{c0}", param="param")
+ self.assertRaises(ValueError, headers.add_header, "key", "val", param=f"param{c0}")
+
+
class ErrorHandler(BaseCGIHandler):
"""Simple handler subclass for testing BaseHandler"""
diff --git a/Lib/wsgiref/headers.py b/Lib/wsgiref/headers.py
index fab851c5a4..fd98e85d75 100644
--- a/Lib/wsgiref/headers.py
+++ b/Lib/wsgiref/headers.py
@@ -9,6 +9,7 @@
# existence of which force quoting of the parameter value.
import re
tspecials = re.compile(r'[ \(\)<>@,;:\\"/\[\]\?=]')
+_control_chars_re = re.compile(r'[\x00-\x1F\x7F]')
def _formatparam(param, value=None, quote=1):
"""Convenience function to format and return a key=value pair.
@@ -41,6 +42,8 @@ def __init__(self, headers=None):
def _convert_string_type(self, value):
"""Convert/check value type."""
if type(value) is str:
+ if _control_chars_re.search(value):
+ raise ValueError("Control characters not allowed in headers")
return value
raise AssertionError("Header names/values must be"
" of type str (got {0})".format(repr(value)))
diff --git a/Misc/NEWS.d/next/Security/2026-01-16-11-07-36.gh-issue-143916.dpWeOD.rst b/Misc/NEWS.d/next/Security/2026-01-16-11-07-36.gh-issue-143916.dpWeOD.rst
new file mode 100644
index 0000000000..44bd0b2705
--- /dev/null
+++ b/Misc/NEWS.d/next/Security/2026-01-16-11-07-36.gh-issue-143916.dpWeOD.rst
@@ -0,0 +1,2 @@
+Reject C0 control characters within wsgiref.headers.Headers fields, values,
+and parameters.

35
python3.11.spec
View file

@ -13,11 +13,11 @@ URL: https://www.python.org/
# WARNING When rebasing to a new Python version,
# remember to update the python3-docs package as well
%global general_version %{pybasever}.14
%global general_version %{pybasever}.15
#global prerel ...
%global upstream_version %{general_version}%{?prerel}
Version: %{general_version}%{?prerel:~%{prerel}}
Release: 5%{?dist}
Release: 1%{?dist}
License: Python-2.0.1
@ -348,34 +348,6 @@ Patch452: 00452-properly-apply-exported-cflags-for-dtrace-systemtap-builds.patch
# stressed on OpenSSL 3.5.
Patch462: 00462-fix-pyssl_seterror-handling-ssl_error_syscall.patch
# 00471 # f7ffc7e947b58a4d33c7f5bb69674af20fe4875d
# CVE-2025-12084
#
# * gh-142145: Remove quadratic behavior in node ID cache clearing (GH-142146)
# * gh-142754: Ensure that Element & Attr instances have the ownerDocument attribute (GH-142794)
Patch471: 00471-cve-2025-12084.patch
# 00472 # 2ba215eaba508b2cdd7c3acfdf3b9a6e32872274
# CVE-2025-13836
#
# gh-119451: Fix a potential denial of service in http.client (GH-119454)
#
# Reading the whole body of the HTTP response could cause OOM if
# the Content-Length value is too large even if the server does not send
# a large amount of data. Now the HTTP client reads large data by chunks,
# therefore the amount of consumed memory is proportional to the amount
# of sent data.
Patch472: 00472-cve-2025-13836.patch
# 00473 # 3c13163c5c0be4d073b081f19ad52c007c126d53
# CVE-2026-0865
#
# gh-143916: Reject control characters in wsgiref.headers.Headers (GH-143917)
#
# * Add 'test.support' fixture for C0 control characters
# * gh-143916: Reject control characters in wsgiref.headers.Headers
Patch473: 00473-cve-2026-0865.patch
# 00474 # 837ddca0372fa87ff9cee47142200caa21e77def
# CVE-2025-15366
#
@ -1720,6 +1692,9 @@ CheckPython optimized
# ======================================================
%changelog
* Tue Mar 03 2026 Tomáš Hrnčiar <thrnciar@redhat.com> - 3.11.15-1
- Update to 3.11.15
* Mon Feb 09 2026 Tomáš Hrnčiar <thrnciar@redhat.com> - 3.11.14-5
- Security fixes for CVE-2026-0865, CVE-2025-15366 and CVE-2025-15367

4
sources
View file

@ -1,2 +1,2 @@
SHA512 (Python-3.11.14.tar.xz) = 8b5aa917fe67dbaa3c306239ed56c16cd7a3b4b701fab0b3dc0d342d60176c75440713bcab0c59a3289ac4a0f06103bd31140c492556e1937fcdbd990675f9e5
SHA512 (Python-3.11.14.tar.xz.asc) = d0049fd6f6d06ae5d86b3587080be060d522dd52e7e56270125541d5617582ea3977b75c7e585da005694665cfc5657e39033a730187c506edc252965f4df769
SHA512 (Python-3.11.15.tar.xz) = 1667f4839acfd23d05917a12993983b7dc3ab4438a37c72496fd040ac6981f4dea9dc95461ca701a6862beedb56c423fb83398b8b18e39e1efe12f539fced1c1
SHA512 (Python-3.11.15.tar.xz.asc) = 673822ca037acb521bf7d3e7433f83cc2d60c8d102cfbf6695234e2a50ce12a7003040ad4017438510ebbb1ff0ba6727253fae250b07bc0e3d24b5578e80be52