CVE-2023-49083
Last modified
CVE-2023-49083 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.98% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cryptography.Io | Cryptography | >= 3.1, < 41.0.6 |
References
- https://github.com/pyca/cryptography/pull/9926Issue Tracking, Patch
- https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97Exploit, Vendor Advisory
- https://github.com/pyca/cryptography/pull/9926Issue Tracking, Patch
- https://github.com/pyca/cryptography/security/advisories/GHSA-jfhm-5ghh-2f97Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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