Headline
GHSA-6vqw-3v5j-54x4: cryptography NULL pointer deference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override
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.
Patched in https://github.com/pyca/cryptography/pull/10423
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2024-26130
cryptography NULL pointer deference with pkcs12.serialize_key_and_certificates when called with a non-matching certificate and private key and an hmac_hash override
High severity GitHub Reviewed Published Feb 21, 2024 in pyca/cryptography • Updated Feb 21, 2024
Package
pip cryptography (pip)
Affected versions
>= 38.0.0, < 42.0.4
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_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, and now a ValueError is properly raised.
Patched in pyca/cryptography#10423
References
- GHSA-6vqw-3v5j-54x4
- pyca/cryptography#10423
- pyca/cryptography@97d2316
Published to the GitHub Advisory Database
Feb 21, 2024
Last updated
Feb 21, 2024
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