CVE-2022-3996
Denial of service by double-checked locking in openssl-src
描述
If an X.509 certificate contains a malformed policy constraint and policy processing is enabled, then a write lock will be taken twice recursively. On some operating systems (most widely: Windows) this results in a denial of service when the affected process hangs. Policy processing being enabled on a publicly facing server is not considered to be a common setup. Policy processing is enabled by passing the `-policy' argument to the command line utilities or by calling the `X509_VERIFY_PARAM_set1_policies()' function. Update (31 March 2023): The description of the policy processing enablement was corrected based on CVE-2023-0466.
如何修補 CVE-2022-3996
要修補 CVE-2022-3996,請將受影響套件升級到下列已修補版本。
- —升級至 3.0.7-r2 或更新版本
- —升級至 3.0.8-r0 或更新版本
CVE-2022-3996 正在被利用嗎?
低 — EPSS 為 1.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 3.0.0, < 3.0.7-r2
- from 0, < 3.0.8-r0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |