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- Add CVE-2023-24329-blank-URL-bypass.patch (CVE-2023-24329,

Browse Source 
bsc#1208471) blocklists bypass via the urllib.parse component
  when supplying a URL that starts with blank characters

OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python?expand=0&rev=343
This commit is contained in:
Matej Cepl 2023-03-01 22:00:56 +00:00 committed by Git OBS Bridge
parent ea48fe2e7a
commit c21db0430f
3 changed files with 63 additions and 0 deletions
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51
CVE-2023-24329-blank-URL-bypass.patch Normal file
View File

@ -0,0 +1,51 @@
---
Lib/test/test_urlparse.py | 20 ++++++++++
Lib/urlparse.py | 2 -
Misc/NEWS.d/next/Library/2022-11-12-15-45-51.gh-issue-99418.FxfAXS.rs | 2 +
3 files changed, 23 insertions(+), 1 deletion(-)
--- a/Lib/test/test_urlparse.py
+++ b/Lib/test/test_urlparse.py
@@ -592,6 +592,26 @@ class UrlParseTestCase(unittest.TestCase
self.assertEqual(p.netloc, "www.example.net:foo")
self.assertRaises(ValueError, lambda: p.port)
+ def do_attributes_bad_scheme(self, bytes, parse, scheme):
+ url = scheme + "://www.example.net"
+ if bytes:
+ if url.isascii():
+ url = url.encode("ascii")
+ else:
+ continue
+ p = parse(url)
+ if bytes:
+ self.assertEqual(p.scheme, b"")
+ else:
+ self.assertEqual(p.scheme, "")
+
+ def test_attributes_bad_scheme(self):
+ """Check handling of invalid schemes."""
+ for bytes in (False, True):
+ for parse in (urlparse.urlsplit, urlparse.urlparse):
+ for scheme in (".", "+", "-", "0", "http&", "६http"):
+ self.do_attributes_bad_scheme(bytes, parse, scheme)
+
def test_attributes_without_netloc(self):
# This example is straight from RFC 3261. It looks like it
# should allow the username, hostname, and port to be filled
--- a/Lib/urlparse.py
+++ b/Lib/urlparse.py
@@ -211,7 +211,7 @@ def urlsplit(url, scheme='', allow_fragm
clear_cache()
netloc = query = fragment = ''
i = url.find(':')
- if i > 0:
+ if i > 0 and url[0].isascii() and url[0].isalpha():
if url[:i] == 'http': # optimize the common case
scheme = url[:i].lower()
url = url[i+1:]
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-11-12-15-45-51.gh-issue-99418.FxfAXS.rs
@@ -0,0 +1,2 @@
+Fix bug in :func:`urllib.parse.urlparse` that causes URL schemes that begin
+with a digit, a plus sign, or a minus sign to be parsed incorrectly.

7
python-base.changes
View File

@ -1,3 +1,10 @@
-------------------------------------------------------------------
Wed Mar 1 14:43:31 UTC 2023 - Matej Cepl <mcepl@suse.com>
- Add CVE-2023-24329-blank-URL-bypass.patch (CVE-2023-24329,
bsc#1208471) blocklists bypass via the urllib.parse component
when supplying a URL that starts with blank characters
-------------------------------------------------------------------
Fri Jan 27 15:00:21 UTC 2023 - Thorsten Kukuk <kukuk@suse.com>

5
python-base.spec
View File

@ -142,6 +142,10 @@ Patch73: CVE-2022-45061-DoS-by-IDNA-decode.patch
# PATCH-FIX-UPSTREAM skip_unverified_test.patch mcepl@suse.com
# switching verification off on the old SLE doesn't work
Patch74: skip_unverified_test.patch
# PATCH-FIX-UPSTREAM CVE-2023-24329-blank-URL-bypass.patch bsc#1208471 mcepl@suse.com
# blocklist bypass via the urllib.parse component when supplying
# a URL that starts with blank characters
Patch75: CVE-2023-24329-blank-URL-bypass.patch
# COMMON-PATCH-END
%define python_version %(echo %{tarversion} | head -c 3)
BuildRequires: automake
@ -287,6 +291,7 @@ other applications.
%if 0%{?sle_version} && 0%{?sle_version} < 150000
%patch74 -p1
%endif
%patch75 -p1
# For patch 66
cp -v %{SOURCE66} Lib/test/recursion.tar