NULL Pointer Dereference Affecting python-cryptography package, versions *
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Test your applications- Snyk ID SNYK-DEBIAN13-PYTHONCRYPTOGRAPHY-6095069
- published 30 Nov 2023
- disclosed 29 Nov 2023
Introduced: 29 Nov 2023
CVE-2023-49083 Open this link in a new tabHow to fix?
There is no fixed version for Debian:13 python-cryptography.
NVD Description
Note: Versions mentioned in the description apply only to the upstream python-cryptography package and not the python-cryptography package as distributed by Debian.
See How to fix? for Debian:13 relevant fixed versions and status.
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://security-tracker.debian.org/tracker/CVE-2023-49083
- https://github.com/pyca/cryptography/commit/f09c261ca10a31fe41b1262306db7f8f1da0e48a
- https://github.com/pyca/cryptography/pull/9926
- https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97
- http://www.openwall.com/lists/oss-security/2023/11/29/2
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QMNTYMUGFJSDBYBU22FUYBHFRZODRKXV/