NULL pointer dereference in Cryptography.io Cryptography
CVE-2023-49083
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. Exploitat…
EPSS: 0.010 (58.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cryptography.io Cryptography
- Pyca Cryptography — versions >= 3.1, < 41.0.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC, Issue Tracking)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-49083?
- CVE-2023-49083 is a medium-severity vulnerability in Cryptography.io Cryptography, classified under NULL Pointer Dereference. CVSS score: 5.9/10. Published 2023-11-29.
- How severe is CVE-2023-49083?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2023-49083 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.