python310/support-expat-CVE-2022-25236-patched.patch

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From 7da97f61816f3cadaa6788804b22a2434b40e8c5 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
<31488909+miss-islington@users.noreply.github.com>
Date: Mon, 21 Feb 2022 08:16:09 -0800
Subject: [PATCH] bpo-46811: Make test suite support Expat >=2.4.5 (GH-31453)
(GH-31472)
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.
References:
- https://datatracker.ietf.org/doc/html/rfc3968
- https://www.w3.org/TR/xml-names/
Also, test_minidom.py: Support Expat >=2.4.5
(cherry picked from commit 2cae93832f46b245847bdc252456ddf7742ef45e)
Co-authored-by: Sebastian Pipping <sebastian@pipping.org>
---
Lib/test/test_minidom.py | 25 ++++++++++---------------
1 file changed, 10 insertions(+), 15 deletions(-)
create mode 100644 Misc/NEWS.d/next/Library/2022-02-20-21-03-31.bpo-46811.8BxgdQ.rst
--- a/Lib/test/test_minidom.py
+++ b/Lib/test/test_minidom.py
@@ -6,7 +6,6 @@ import io
from test import support
import unittest
-import pyexpat
import xml.dom.minidom
from xml.dom.minidom import parse, Node, Document, parseString
@@ -1149,13 +1148,11 @@ class MinidomTest(unittest.TestCase):
# Verify that character decoding errors raise exceptions instead
# of crashing
- if pyexpat.version_info >= (2, 4, 5):
- self.assertRaises(ExpatError, parseString,
- b'<fran\xe7ais></fran\xe7ais>')
- self.assertRaises(ExpatError, parseString,
- b'<franais>Comment \xe7a va ? Tr\xe8s bien ?</franais>')
- else:
- self.assertRaises(UnicodeDecodeError, parseString,
+ # It doesnt make any sense to insist on the exact text of the
+ # error message, or even the exact Exception … it is enough that
+ # the error has been discovered.
+ with self.assertRaises((UnicodeDecodeError, ExpatError)):
+ parseString(
b'<fran\xe7ais>Comment \xe7a va ? Tr\xe8s bien ?</fran\xe7ais>')
doc.unlink()
@@ -1617,12 +1614,10 @@ class MinidomTest(unittest.TestCase):
self.confirm(doc2.namespaceURI == xml.dom.EMPTY_NAMESPACE)
def testExceptionOnSpacesInXMLNSValue(self):
- if pyexpat.version_info >= (2, 4, 5):
- context = self.assertRaisesRegex(ExpatError, 'syntax error')
- else:
- context = self.assertRaisesRegex(ValueError, 'Unsupported syntax')
-
- with context:
+ # It doesnt make any sense to insist on the exact text of the
+ # error message, or even the exact Exception … it is enough that
+ # the error has been discovered.
+ with self.assertRaises((ExpatError, ValueError)):
parseString('<element xmlns:abc="http:abc.com/de f g/hi/j k"><abc:foo /></element>')
def testDocRemoveChild(self):