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From 6d2dcef3427b96c36ddfebf217f774a2c5ecad38 Mon Sep 17 00:00:00 2001
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From: Lumir Balhar <lbalhar@redhat.com>
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Date: Wed, 30 Jun 2021 09:27:07 +0200
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Subject: [PATCH] CVE-2021-33503
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---
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src/pip/_vendor/urllib3/util/url.py | 8 +++++---
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1 file changed, 5 insertions(+), 3 deletions(-)
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diff --git a/src/pip/_vendor/urllib3/util/url.py b/src/pip/_vendor/urllib3/util/url.py
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index 5fe37a7..addaeb7 100644
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--- a/src/pip/_vendor/urllib3/util/url.py
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+++ b/src/pip/_vendor/urllib3/util/url.py
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@@ -63,12 +63,12 @@ IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT + "$")
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BRACELESS_IPV6_ADDRZ_RE = re.compile("^" + IPV6_ADDRZ_PAT[2:-2] + "$")
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ZONE_ID_RE = re.compile("(" + ZONE_ID_PAT + r")\]$")
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-SUBAUTHORITY_PAT = (u"^(?:(.*)@)?(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
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+_HOST_PORT_PAT = ("^(%s|%s|%s)(?::([0-9]{0,5}))?$") % (
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REG_NAME_PAT,
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IPV4_PAT,
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IPV6_ADDRZ_PAT,
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)
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-SUBAUTHORITY_RE = re.compile(SUBAUTHORITY_PAT, re.UNICODE | re.DOTALL)
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+_HOST_PORT_RE = re.compile(_HOST_PORT_PAT, re.UNICODE | re.DOTALL)
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UNRESERVED_CHARS = set(
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789._-~"
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@@ -374,7 +374,9 @@ def parse_url(url):
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scheme = scheme.lower()
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if authority:
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- auth, host, port = SUBAUTHORITY_RE.match(authority).groups()
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+ auth, _, host_port = authority.rpartition("@")
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+ auth = auth or None
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+ host, port = _HOST_PORT_RE.match(host_port).groups()
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if auth and normalize_uri:
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auth = _encode_invalid_chars(auth, USERINFO_CHARS)
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if port == "":
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--
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2.31.1
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