!48 fix CVE-2023-23931

From: @zhuofeng6 
Reviewed-by: @gaoruoshu 
Signed-off-by: @gaoruoshu

backport-CVE-2023-23931.patch

@@ -0,0 +1,45 @@
+From 9fbf84efc861668755ab645530ec7be9cf3c6696 Mon Sep 17 00:00:00 2001
+From: Alex Gaynor <alex.gaynor@gmail.com>
+Date: Tue, 7 Feb 2023 11:34:18 -0500
+Subject: [PATCH] Don't allow update_into to mutate immutable objects (#8230)
+
+---
+ src/cryptography/hazmat/backends/openssl/ciphers.py | 2 +-
+ tests/hazmat/primitives/test_ciphers.py             | 8 ++++++++
+ 2 files changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/src/cryptography/hazmat/backends/openssl/ciphers.py b/src/cryptography/hazmat/backends/openssl/ciphers.py
+index d5b6010..a5737dc 100644
+--- a/src/cryptography/hazmat/backends/openssl/ciphers.py
++++ b/src/cryptography/hazmat/backends/openssl/ciphers.py
+@@ -155,7 +155,7 @@ class _CipherContext(object):
+         data_processed = 0
+         total_out = 0
+         outlen = self._backend._ffi.new("int *")
+-        baseoutbuf = self._backend._ffi.from_buffer(buf)
++        baseoutbuf = self._backend._ffi.from_buffer(buf, require_writable=True)
+         baseinbuf = self._backend._ffi.from_buffer(data)
+ 
+         while data_processed != total_data_len:
+diff --git a/tests/hazmat/primitives/test_ciphers.py b/tests/hazmat/primitives/test_ciphers.py
+index ef57790..977f148 100644
+--- a/tests/hazmat/primitives/test_ciphers.py
++++ b/tests/hazmat/primitives/test_ciphers.py
+@@ -306,6 +306,14 @@ class TestCipherUpdateInto(object):
+         with pytest.raises(ValueError):
+             encryptor.update_into(b"testing", buf)
+ 
++    def test_update_into_immutable(self, backend):
++        key = b"\x00" * 16
++        c = ciphers.Cipher(AES(key), modes.ECB(), backend)
++        encryptor = c.encryptor()
++        buf = b"\x00" * 32
++        with pytest.raises((TypeError, BufferError)):
++            encryptor.update_into(b"testing", buf)
++
+     @pytest.mark.supported(
+         only_if=lambda backend: backend.cipher_supported(
+             AES(b"\x00" * 16), modes.GCM(b"\x00" * 12)
+-- 
+2.33.0
+

python-cryptography.spec

@@ -1,12 +1,14 @@
 %global srcname cryptography
 Name:           python-%{srcname}
 Version:        39.0.0
-Release:        1
+Release:        2
 Summary:        PyCA's cryptography library
 License:        ASL 2.0 or BSD
 URL:            https://cryptography.io/en/latest/  
 Source0:        %{srcname}-%{version}.tar.gz
 
+Patch6001:      backport-CVE-2023-23931.patch
+
 BuildRequires:  openssl-devel cargo
 BuildRequires:  gcc
 
@@ -80,6 +82,12 @@ EOF
 %doc README.rst docs
 
 %changelog
+* Tue Feb 14 2023 zhuofeng<zhuofeng2@huawei.com> - 39.0.0-2
+- Type:CVE
+- CVE:CVE-2023-23931
+- SUG:NA
+- DESC:fix CVE-2023-23931
+
 * Fri Feb 3 2023 huangduirong <huangduirong@huawei.com> - 39.0.0-1
 - Upgrade package to 39.0.0