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import CS python-cryptography-3.3.1-3.module_el8+908+e4fa621d

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eabdullin 2024-03-28 14:04:29 +00:00
parent 9a872f3966
commit 5d47f40a5d
2 changed files with 51 additions and 1 deletions
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42
SOURCES/0006-CVE-2023-23931.patch Normal file
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@ -0,0 +1,42 @@
From 94a50a9731f35405f0357fa5f3b177d46a726ab3 Mon Sep 17 00:00:00 2001
From: Alex Gaynor <alex.gaynor@gmail.com>
Date: Tue, 31 Jan 2023 08:33:54 -0500
Subject: [PATCH] Don't allow update_into to mutate immutable objects
---
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 286583f9325..075d68fb905 100644
--- a/src/cryptography/hazmat/backends/openssl/ciphers.py
+++ b/src/cryptography/hazmat/backends/openssl/ciphers.py
@@ -156,7 +156,7 @@ def update_into(self, data: bytes, buf: bytes) -> int:
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 02127dd9cab..bf3b047dec2 100644
--- a/tests/hazmat/primitives/test_ciphers.py
+++ b/tests/hazmat/primitives/test_ciphers.py
@@ -318,6 +318,14 @@ def test_update_into_buffer_too_small(self, backend):
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)

10
SPECS/python-cryptography.spec
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@ -11,7 +11,7 @@
Name: python-%{srcname}
Version: 3.3.1
Release: 2%{?dist}
Release: 3%{?dist}
Summary: PyCA's cryptography library
License: ASL 2.0 or BSD
@ -29,6 +29,10 @@ Source2: gpgkey-05FD_9FA1_6CF7_5735_0D91_A560_235A_E5F1_29F9_ED98.gpg
# See: https://projects.engineering.redhat.com/browse/RCM-72605
ExcludeArch: i686
# Security fix for CVE-2023-23931
# Resolved upstream: https://github.com/pyca/cryptography/pull/8230
Patch0006: 0006-CVE-2023-23931.patch
BuildRequires: openssl-devel
BuildRequires: gcc
BuildRequires: gnupg2
@ -168,6 +172,10 @@ PYTHONPATH=%{buildroot}%{python3_sitearch} %{__python3} -m pytest -k "not (test_
%changelog
* Tue Aug 15 2023 Christian Heimes <cheimes@redhat.com> - 3.3.1-3
- Fix CVE-2023-23931: Don't allow update_into to mutate immutable objects,
- Resolves RHEL-4932
* Mon Jan 18 2021 Tomas Orsava <torsava@redhat.com> - 3.3.1-2
- Convert from Fedora to the python39 module in RHEL8
- Resolves: rhbz#1877430