CVE-2021-32040
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 t…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | Mongodb | from 4.2.0 before 4.2.16 from 4.4.0 before 4.4.11 from 5.0.0 before 5.0.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://jira.mongodb.org/browse/SERVER-58203
- https://jira.mongodb.org/browse/SERVER-59299
- https://jira.mongodb.org/browse/SERVER-60218
- https://security.netapp.com/advisory/ntap-20220609-0005/
- https://jira.mongodb.org/browse/SERVER-58203
- https://jira.mongodb.org/browse/SERVER-59299
- https://jira.mongodb.org/browse/SERVER-60218
- https://security.netapp.com/advisory/ntap-20220609-0005/