diff options
Diffstat (limited to 'main/python2/CVE-2019-9636.patch')
-rw-r--r-- | main/python2/CVE-2019-9636.patch | 155 |
1 files changed, 0 insertions, 155 deletions
diff --git a/main/python2/CVE-2019-9636.patch b/main/python2/CVE-2019-9636.patch deleted file mode 100644 index 17a98a4196c..00000000000 --- a/main/python2/CVE-2019-9636.patch +++ /dev/null @@ -1,155 +0,0 @@ -From e37ef41289b77e0f0bb9a6aedb0360664c55bdd5 Mon Sep 17 00:00:00 2001 -From: Steve Dower <steve.dower@microsoft.com> -Date: Thu, 7 Mar 2019 09:08:45 -0800 -Subject: [PATCH] bpo-36216: Add check for characters in netloc that normalize - to separators (GH-12201) - ---- - Doc/library/urlparse.rst | 20 ++++++++++++++++ - Lib/test/test_urlparse.py | 24 +++++++++++++++++++ - Lib/urlparse.py | 17 +++++++++++++ - .../2019-03-06-09-38-40.bpo-36216.6q1m4a.rst | 3 +++ - 4 files changed, 64 insertions(+) - create mode 100644 Misc/NEWS.d/next/Security/2019-03-06-09-38-40.bpo-36216.6q1m4a.rst - -diff --git a/Doc/library/urlparse.rst b/Doc/library/urlparse.rst -index 22249da54fbb..0989c88c3022 100644 ---- a/Doc/library/urlparse.rst -+++ b/Doc/library/urlparse.rst -@@ -119,12 +119,22 @@ The :mod:`urlparse` module defines the following functions: - See section :ref:`urlparse-result-object` for more information on the result - object. - -+ Characters in the :attr:`netloc` attribute that decompose under NFKC -+ normalization (as used by the IDNA encoding) into any of ``/``, ``?``, -+ ``#``, ``@``, or ``:`` will raise a :exc:`ValueError`. If the URL is -+ decomposed before parsing, or is not a Unicode string, no error will be -+ raised. -+ - .. versionchanged:: 2.5 - Added attributes to return value. - - .. versionchanged:: 2.7 - Added IPv6 URL parsing capabilities. - -+ .. versionchanged:: 2.7.17 -+ Characters that affect netloc parsing under NFKC normalization will -+ now raise :exc:`ValueError`. -+ - - .. function:: parse_qs(qs[, keep_blank_values[, strict_parsing[, max_num_fields]]]) - -@@ -232,11 +242,21 @@ The :mod:`urlparse` module defines the following functions: - See section :ref:`urlparse-result-object` for more information on the result - object. - -+ Characters in the :attr:`netloc` attribute that decompose under NFKC -+ normalization (as used by the IDNA encoding) into any of ``/``, ``?``, -+ ``#``, ``@``, or ``:`` will raise a :exc:`ValueError`. If the URL is -+ decomposed before parsing, or is not a Unicode string, no error will be -+ raised. -+ - .. versionadded:: 2.2 - - .. versionchanged:: 2.5 - Added attributes to return value. - -+ .. versionchanged:: 2.7.17 -+ Characters that affect netloc parsing under NFKC normalization will -+ now raise :exc:`ValueError`. -+ - - .. function:: urlunsplit(parts) - -diff --git a/Lib/test/test_urlparse.py b/Lib/test/test_urlparse.py -index 4e1ded73c266..73b0228ea8e3 100644 ---- a/Lib/test/test_urlparse.py -+++ b/Lib/test/test_urlparse.py -@@ -1,4 +1,6 @@ - from test import test_support -+import sys -+import unicodedata - import unittest - import urlparse - -@@ -624,6 +626,28 @@ def test_portseparator(self): - self.assertEqual(urlparse.urlparse("http://www.python.org:80"), - ('http','www.python.org:80','','','','')) - -+ def test_urlsplit_normalization(self): -+ # Certain characters should never occur in the netloc, -+ # including under normalization. -+ # Ensure that ALL of them are detected and cause an error -+ illegal_chars = u'/:#?@' -+ hex_chars = {'{:04X}'.format(ord(c)) for c in illegal_chars} -+ denorm_chars = [ -+ c for c in map(unichr, range(128, sys.maxunicode)) -+ if (hex_chars & set(unicodedata.decomposition(c).split())) -+ and c not in illegal_chars -+ ] -+ # Sanity check that we found at least one such character -+ self.assertIn(u'\u2100', denorm_chars) -+ self.assertIn(u'\uFF03', denorm_chars) -+ -+ for scheme in [u"http", u"https", u"ftp"]: -+ for c in denorm_chars: -+ url = u"{}://netloc{}false.netloc/path".format(scheme, c) -+ print "Checking %r" % url -+ with self.assertRaises(ValueError): -+ urlparse.urlsplit(url) -+ - def test_main(): - test_support.run_unittest(UrlParseTestCase) - -diff --git a/Lib/urlparse.py b/Lib/urlparse.py -index f7c2b032b097..54eda08651ab 100644 ---- a/Lib/urlparse.py -+++ b/Lib/urlparse.py -@@ -165,6 +165,21 @@ def _splitnetloc(url, start=0): - delim = min(delim, wdelim) # use earliest delim position - return url[start:delim], url[delim:] # return (domain, rest) - -+def _checknetloc(netloc): -+ if not netloc or not isinstance(netloc, unicode): -+ return -+ # looking for characters like \u2100 that expand to 'a/c' -+ # IDNA uses NFKC equivalence, so normalize for this check -+ import unicodedata -+ netloc2 = unicodedata.normalize('NFKC', netloc) -+ if netloc == netloc2: -+ return -+ _, _, netloc = netloc.rpartition('@') # anything to the left of '@' is okay -+ for c in '/?#@:': -+ if c in netloc2: -+ raise ValueError("netloc '" + netloc2 + "' contains invalid " + -+ "characters under NFKC normalization") -+ - def urlsplit(url, scheme='', allow_fragments=True): - """Parse a URL into 5 components: - <scheme>://<netloc>/<path>?<query>#<fragment> -@@ -193,6 +208,7 @@ def urlsplit(url, scheme='', allow_fragments=True): - url, fragment = url.split('#', 1) - if '?' in url: - url, query = url.split('?', 1) -+ _checknetloc(netloc) - v = SplitResult(scheme, netloc, url, query, fragment) - _parse_cache[key] = v - return v -@@ -216,6 +232,7 @@ def urlsplit(url, scheme='', allow_fragments=True): - url, fragment = url.split('#', 1) - if '?' in url: - url, query = url.split('?', 1) -+ _checknetloc(netloc) - v = SplitResult(scheme, netloc, url, query, fragment) - _parse_cache[key] = v - return v -diff --git a/Misc/NEWS.d/next/Security/2019-03-06-09-38-40.bpo-36216.6q1m4a.rst b/Misc/NEWS.d/next/Security/2019-03-06-09-38-40.bpo-36216.6q1m4a.rst -new file mode 100644 -index 000000000000..1e1ad92c6feb ---- /dev/null -+++ b/Misc/NEWS.d/next/Security/2019-03-06-09-38-40.bpo-36216.6q1m4a.rst -@@ -0,0 +1,3 @@ -+Changes urlsplit() to raise ValueError when the URL contains characters that -+decompose under IDNA encoding (NFKC-normalization) into characters that -+affect how the URL is parsed. -\ No newline at end of file |