ghsa-6vqw-3v5j-54x4
Vulnerability from github
Published
2024-02-21 18:04
Modified
2024-02-21 22:45
Severity
Summary
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
Details
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
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "cryptography"
},
"ranges": [
{
"events": [
{
"introduced": "38.0.0"
},
{
"fixed": "42.0.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-26130"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": true,
"github_reviewed_at": "2024-02-21T18:04:40Z",
"nvd_published_at": "2024-02-21T17:15:09Z",
"severity": "HIGH"
},
"details": "If `pkcs12.serialize_key_and_certificates` is called with both:\n\n1. A certificate whose public key did not match the provided private key\n2. An `encryption_algorithm` with `hmac_hash` set (via `PrivateFormat.PKCS12.encryption_builder().hmac_hash(...)`\n\nThen a NULL pointer dereference would occur, crashing the Python process.\n\nThis has been resolved, and now a `ValueError` is properly raised.\n\nPatched in https://github.com/pyca/cryptography/pull/10423",
"id": "GHSA-6vqw-3v5j-54x4",
"modified": "2024-02-21T22:45:34Z",
"published": "2024-02-21T18:04:40Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/pyca/cryptography/security/advisories/GHSA-6vqw-3v5j-54x4"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26130"
},
{
"type": "WEB",
"url": "https://github.com/pyca/cryptography/pull/10423"
},
{
"type": "WEB",
"url": "https://github.com/pyca/cryptography/commit/97d231672763cdb5959a3b191e692a362f1b9e55"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/cryptography"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
],
"summary": "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"
}
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