CVE-2024-26130
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.83%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. Starting in version 38.0.0 and prior to version 42.0.4, if `pkcs12.serialize_key_and_certificates` is called with both a certificate whose public key did not match the provided private key and an `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`, then a NULL pointer dereference would occur, crashing the Python process. This has been resolved in version 42.0.4, the first version in which a `ValueError` is properly raised.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.83% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- cryptography.io/cryptography
- Source
- security-advisories@github.com
References
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55Patch
- https://github.com/pyca/cryptography/pull/10423Issue Tracking, Patch
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4Vendor Advisory
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55Patch
- https://github.com/pyca/cryptography/pull/10423Issue Tracking, Patch
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.