CVE-2021-32040
Large aggregation pipelines with a specific stage can crash mongod under default configuration
描述
It may be possible to have an extremely long aggregation pipeline in conjunction with a specific stage/operator and cause a stack overflow due to the size of the stack frames used by that stage. If an attacker could cause such an aggregation to occur, they could maliciously crash MongoDB in a DoS attack. This vulnerability affects MongoDB Server v4.4 versions prior to and including 4.4.28, MongoDB Server v5.0 versions prior to 5.0.4 and MongoDB Server v4.2 versions prior to 4.2.16. Workaround: >= v4.2.16 users and all v4.4 users can add the --setParameter internalPipelineLengthLimit=50 instead of the default 1000 to mongod at startup to prevent a crash.
如何修補 CVE-2021-32040
要修補 CVE-2021-32040,請將受影響套件升級到下列已修補版本。
- —升級至 4.2.16 或更新版本
CVE-2021-32040 正在被利用嗎?
低 — EPSS 為 1.5%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- >= 4.2.0, < 4.2.16, >= 4.4.0, < 4.4.11, >= 5.0.0, < 5.0.4
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 |