Vulnerabilities > CVE-2023-49083 - Unspecified vulnerability in Cryptography.Io Cryptography
Summary
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.
Vulnerable Configurations
References
- https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a
- https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a
- https://github.com/pyca/cryptography/pull/9926
- https://github.com/pyca/cryptography/pull/9926
- https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97
- https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97
- https://lists.fedoraproject.org/archives/list/[email protected]/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/
- https://lists.fedoraproject.org/archives/list/[email protected]/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/