From 962eac3925c7184fb5dc174357823223beba0d85 Mon Sep 17 00:00:00 2001

From: Paul Kehrer <paul.l.kehrer@gmail.com>

Date: Sun, 7 Feb 2021 11:04:43 -0600

Subject: [PATCH] port changelog and fix back to master for CVE-2020-36242

diff --git a/src/cryptography/hazmat/backends/openssl/ciphers.py b/src/cryptography/hazmat/backends/openssl/ciphers.py

index 2b10681b31..0f96795fdc 100644

--- a/src/cryptography/hazmat/backends/openssl/ciphers.py

+++ b/src/cryptography/hazmat/backends/openssl/ciphers.py

@@ -16,7 +16,7 @@

 class _CipherContext(object):

     _ENCRYPT = 1

     _DECRYPT = 0

-    _MAX_CHUNK_SIZE = 2 ** 31 - 1

+    _MAX_CHUNK_SIZE = 2 ** 30 - 1

     def __init__(self, backend, cipher, mode, operation):

         self._backend = backend