pyca/cryptography · Security
cryptography NULL pointer dereference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override
- GHSA ID
- GHSA-6vqw-3v5j-54x4
- CVE ID
- CVE-2024-26130
- Severity
- high
- Published
- Updated
- CVSS
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS v3
- 7.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
If pkcs12.serialize_key_and_certificates is called with both:
- A certificate whose public key did not match the provided private key
- An
encryption_algorithmwithhmac_hashset (viaPrivateFormat.PKCS12.encryption_builder().hmac_hash(...)
Then a NULL pointer dereference would occur, crashing the Python process.
This has been resolved, and now a ValueError is properly raised.
CWEs
- CWE-476 · NULL Pointer Dereference
References
- https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4 ↗
- https://github.com/pyca/cryptography/pull/10423 ↗
- https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55 ↗
- https://nvd.nist.gov/vuln/detail/CVE-2024-26130 ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/cryptography/PYSEC-2024-225.yaml ↗
- https://github.com/advisories/GHSA-6vqw-3v5j-54x4 ↗