cryptography is a package designed to expose cryptographic primitives
and recipes to Python developers. Calling `load_pem_pkcs7_certificates`
or `load_der_pkcs7_certificates` could lead to a NULL-pointer dereference
and segfault. Exploitation of this vulnerability poses a serious risk of
Denial of Service (DoS) for any application attempting to deserialize a
PKCS7 blob/certificate. The consequences extend to potential disruptions
in system availability and stability. This vulnerability has been patched
in version 41.0.6.
References:
https://nvd.nist.gov/vuln/detail/CVE-2023-49083https://security-tracker.debian.org/tracker/CVE-2023-49083
(From OE-Core rev: 2d104f78cd13a10640bc284c7fc8358bf305279c)
Signed-off-by: Narpat Mali <narpat.mali@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
cryptography is a package designed to expose cryptographic primitives
and recipes to Python developers. In affected versions `Cipher.update_into`
would accept Python objects which implement the buffer protocol, but
provide only immutable buffers. This would allow immutable objects
(such as `bytes`) to be mutated, thus violating fundamental rules of
Python and resulting in corrupted output. This now correctly raises
an exception. This issue has been present since `update_into` was
originally introduced in cryptography 1.8.
(From OE-Core rev: 368e450c2d800790a05924519f34c579e28e9cbb)
Signed-off-by: Narpat Mali <narpat.mali@windriver.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
The leaking test case has been fixed upstream, so backport the patch.
(From OE-Core rev: 4705b8a724fe288a20f1a080e2796ea90f46c9fb)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
python3-cryptography and python3-cryptography-vectors are actually the
same project but are on Pypi as two separate modules.
The test suite validates that they're the same version and fails if they
are not:
FAIL: tests/test_utils.py::test_vector_version
def test_vector_version():
> assert cryptography.__version__ == cryptography_vectors.__version__
E AssertionError: assert '36.0.2' == '36.0.1'
Catch this slightly earlier by mandating that python3-cryptography-ptest
pulls in an identically versioned python3-cryptography-vectors.
(From OE-Core rev: 7c098aac08faf5da01aafec5c5d87f563d913744)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
