VDB
CVE-2021-32040
CVE-2021-32040
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 2.02% · 79.4th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:F/RL:U/RC:C
EPSS Score
2.02%
79.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| ABB | IIoT services with MongoDB 4.2 installed on ABB Ability Zenon /all |
Timeline
- Apr 12, 2022 CVE Published
- Apr 13, 2022 EPSS Score
- Jun 2, 2022 EPSS Score
- Jul 24, 2022 EPSS Score
- Sep 12, 2022 EPSS Score
- Nov 1, 2022 EPSS Score
- Feb 10, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Mar 30, 2023 PoC Published
- Apr 1, 2023 EPSS Score
- May 21, 2023 EPSS Score
- Jul 11, 2023 EPSS Score