CVE-2022-1473
Resource leakage when decoding certificates and keys
描述
The OPENSSL_LH_flush() function, which empties a hash table, contains a bug that breaks reuse of the memory occuppied by the removed hash table entries. This function is used when decoding certificates or keys. If a long lived process periodically decodes certificates or keys its memory usage will expand without bounds and the process might be terminated by the operating system causing a denial of service. Also traversing the empty hash table entries will take increasingly more time. Typically such long lived processes might be TLS clients or TLS servers configured to accept client certificate authentication. The function was added in the OpenSSL 3.0 version thus older releases are not affected by the issue. Fixed in OpenSSL 3.0.3 (Affected 3.0.0,3.0.1,3.0.2).
如何修補 CVE-2022-1473
要修補 CVE-2022-1473,請將受影響套件升級到下列已修補版本。
- —升級至 3.0.3-r0 或更新版本
- —升級至 3.0.3-r0 或更新版本
CVE-2022-1473 正在被利用嗎?
低 — EPSS 為 2.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 3.0.0, < 3.0.3-r0
- from 0, < 3.0.3-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 |