import python-urllib3-1.25.7-5.module+el8.5.0+11639+ea5b349d

This commit is contained in:
CentOS Sources 2021-11-09 04:50:29 -05:00 committed by Stepan Oksanichenko
parent f31acb38bb
commit 82e00c1870
2 changed files with 92 additions and 1 deletions

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@ -0,0 +1,64 @@
From d5e3238b87fc557600618f18179e821a4a1c7577 Mon Sep 17 00:00:00 2001
From: Lumir Balhar <lbalhar@redhat.com>
Date: Tue, 29 Jun 2021 16:03:37 +0200
Subject: [PATCH] CVE-2021-33503
---
src/urllib3/util/url.py | 8 +++++---
test/test_util.py | 10 ++++++++++
2 files changed, 15 insertions(+), 3 deletions(-)
diff --git a/src/urllib3/util/url.py b/src/urllib3/util/url.py
index 8ef5a23..7fb2650 100644
--- a/src/urllib3/util/url.py
+++ b/src/urllib3/util/url.py
@@ -63,12 +63,12 @@ IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT + "$")
BRACELESS_IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT[2:-2] + "$")
ZONE_ID_RE = re.compile("(" + ZONE_ID_PAT + r")\]$")
-SUBAUTHORITY_PAT = (u"^(?:(.*)@)?(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
+_HOST_PORT_PAT = ("^(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
REG_NAME_PAT,
IPV4_PAT,
IPV6_ADDRZ_PAT,
)
-SUBAUTHORITY_RE = re.compile(SUBAUTHORITY_PAT, re.UNICODE | re.DOTALL)
+_HOST_PORT_RE = re.compile(_HOST_PORT_PAT, re.UNICODE | re.DOTALL)
UNRESERVED_CHARS = set(
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._-~"
@@ -365,7 +365,9 @@ def parse_url(url):
scheme = scheme.lower()
if authority:
- auth, host, port = SUBAUTHORITY_RE.match(authority).groups()
+ auth, _, host_port = authority.rpartition("@")
+ auth = auth or None
+ host, port = _HOST_PORT_RE.match(host_port).groups()
if auth and normalize_uri:
auth = _encode_invalid_chars(auth, USERINFO_CHARS)
if port == "":
diff --git a/test/test_util.py b/test/test_util.py
index 42c3882..04c90b0 100644
--- a/test/test_util.py
+++ b/test/test_util.py
@@ -425,6 +425,16 @@ class TestUtil(object):
query="%0D%0ASET%20test%20failure12%0D%0A:8080/test/?test=a",
),
),
+ # Tons of '@' causing backtracking
+ ("https://" + ("@" * 10000) + "[", False),
+ (
+ "https://user:" + ("@" * 10000) + "example.com",
+ Url(
+ scheme="https",
+ auth="user:" + ("%40" * 9999),
+ host="example.com",
+ ),
+ ),
]
@pytest.mark.parametrize("url, expected_url", url_vulnerabilities)
--
2.31.1

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@ -5,7 +5,7 @@
Name: python-%{srcname}
Version: 1.25.7
Release: 4%{?dist}
Release: 5%{?dist}
Summary: Python HTTP library with thread-safe connection pooling and file post
License: MIT
@ -13,6 +13,10 @@ URL: https://github.com/urllib3/urllib3
Source0: %{url}/archive/%{version}/%{srcname}-%{version}.tar.gz
# Unbundle ssl_match_hostname since we depend on it
Source1: ssl_match_hostname_py3.py
# CVE-2021-33503 Catastrophic backtracking in URL authority parser
# Tracking bug: https://bugzilla.redhat.com/show_bug.cgi?id=1968074
# Upstream fix: https://github.com/urllib3/urllib3/commit/2d4a3fee6de2fa45eb82169361918f759269b4ec
Patch0: CVE-2021-33503.patch
BuildArch: noarch
# Exclude i686 arch. Due to a modularity issue it's being added to the
# x86_64 compose of CRB, but we don't want to ship it at all.
@ -50,6 +54,24 @@ Python3 HTTP module with connection pooling and file POST abilities.
%prep
%autosetup -p1 -n %{srcname}-%{version}
# Make sure that the RECENT_DATE value doesn't get too far behind what the current date is.
# RECENT_DATE must not be older that 2 years from the build time, or else test_recent_date
# (from test/test_connection.py) would fail. However, it shouldn't be to close to the build time either,
# since a user's system time could be set to a little in the past from what build time is (because of timezones,
# corner cases, etc). As stated in the comment in src/urllib3/connection.py:
# When updating RECENT_DATE, move it to within two years of the current date,
# and not less than 6 months ago.
# Example: if Today is 2018-01-01, then RECENT_DATE should be any date on or
# after 2016-01-01 (today - 2 years) AND before 2017-07-01 (today - 6 months)
# There is also a test_ssl_wrong_system_time test (from test/with_dummyserver/test_https.py) that tests if
# user's system time isn't set as too far in the past, because it could lead to SSL verification errors.
# That is why we need RECENT_DATE to be set at most 2 years ago (or else test_ssl_wrong_system_time would
# result in false positive), but before at least 6 month ago (so this test could tolerate user's system time being
# set to some time in the past, but not to far away from the present).
# Next few lines update RECENT_DATE dynamically.
recent_date=$(date --date "7 month ago" +"%Y, %_m, %_d")
sed -i "s/^RECENT_DATE = datetime.date(.*)/RECENT_DATE = datetime.date($recent_date)/" src/urllib3/connection.py
# Drop the dummyserver tests in koji. They fail there in real builds, but not
# in scratch builds (weird).
rm -rf test/with_dummyserver/
@ -100,6 +122,11 @@ popd
%changelog
* Tue Jun 29 2021 Lumír Balhar <lbalhar@redhat.com> - 1.25.7-5
- Fix for CVE-2021-33503 Catastrophic backtracking in URL authority parser
Resolves: rhbz#1968074
- Update RECENT_DATE dynamically
* Fri Dec 13 2019 Tomas Orsava <torsava@redhat.com> - 1.25.7-4
- Exclude unsupported i686 arch