CVE-2023-49083
cryptography vulnerable to NULL-dereference when loading PKCS7 certificates
5.9
MEDIUM
CVSS 3.1
EPSS 0.98%
描述
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. Exploitation of this vulnerability poses a serious risk of Denial of Service (DoS) for any application attempting to deserialize a PKCS7 blob/certificate. The consequences extend to potential disruptions in system availability and stability. This vulnerability has been patched in version 41.0.6.
如何修補 CVE-2023-49083
要修補 CVE-2023-49083,請將受影響套件升級到下列已修補版本。
- —升級至 3.3.2-1+deb11u1 或更新版本
- —升級至 41.0.6 或更新版本
- —升級至 f09c261ca10a31fe41b1262306db7f8f1da0e48a 或更新版本
CVE-2023-49083 正在被利用嗎?
低 — EPSS 為 1.0%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0, < 3.3.2-1+deb11u1
- >= 3.1, < 41.0.6
- from 0, < f09c261ca10a31fe41b1262306db7f8f1da0e48a | >= 3.1, < 41.0.6
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |