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CVE-2021-32040

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Date: April 12, 2022

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 versions prior to 5.0.4, 4.4.11, 4.2.16.

Language: C++

Severity Score

Related Resources (7)

https://security-tracker.debian.org/tracker/CVE-2021-32040
https://jira.mongodb.org/browse/SERVER-58203
https://jira.mongodb.org/browse/SERVER-60218
https://jira.mongodb.org/browse/SERVER-59299
https://security.netapp.com/advisory/ntap-20220609-0005/
https://nvd.nist.gov/vuln/detail/CVE-2021-32040
https://www.mend.io/vulnerability-database/CVE-2021-32040

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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