From faa011b41f7141121546045925d809d54e70f5fd Mon Sep 17 00:00:00 2001
From: Kevin Backhouse <kevinbackhouse@github.com>
Date: Fri, 15 Oct 2021 15:21:37 +0100
Subject: [PATCH] Fix ReDoS in regex.

---
 Lib/ldap/schema/tokenizer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/ldap/schema/tokenizer.py b/Lib/ldap/schema/tokenizer.py
index 69823f2b..623b86d5 100644
--- a/Lib/ldap/schema/tokenizer.py
+++ b/Lib/ldap/schema/tokenizer.py
@@ -13,7 +13,7 @@
     r"|"              # or
     r"([^'$()\s]+)"   # string of length >= 1 without '$() or whitespace
     r"|"              # or
-    r"('(?:[^'\\]|\\\\|\\.)*?'(?!\w))"
+    r"('(?:[^'\\]|\\.)*'(?!\w))"
                       # any string or empty string surrounded by unescaped
                       # single quotes except if right quote is succeeded by
                       # alphanumeric char