CVE-2021-32040 (GCVE-0-2021-32040)

Vulnerability from cvelistv5 – Published: 2022-04-12 14:15 – Updated: 2024-09-16 20:03
VLAI
Title
Large aggregation pipelines with a specific stage can crash mongod under default configuration
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-02-23 18:16 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
mongodb CNA under the mitre root
CNA scorecard C 70/100 over 222 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
MongoDB Inc. MongoDB Server Affected: 5.0 , < 5.0.4 (custom)
Affected: 4.4 , ≤ 4.4.28 (custom)
Affected: 4.2 , < 4.2.16 (custom)
guessed Create a notification for this product.
mongodb mongodb Affected: 5.0 , < 5.0.4 (custom)
Affected: 4.4 , ≤ 4.4.28 (custom)
Affected: 4.2 , < 4.2.16 (custom)
    cpe:2.3:a:mongodb:mongodb:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2022-04-11 23:00
Show details on NVD website
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline

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