Bug 2074792 (CVE-2021-32040)

Summary:	CVE-2021-32040 mongodb: Pipeline Stack-based Overflow
Product:	[Other] Security Response	Reporter:	Avinash Hanwate <ahanwate>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	bbuckingham, bcourt, bkearney, ehelms, jsherril, lzap, mhulan, nmoumoul, orabin, pcreech, rchan
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	MongoDB Server 4.2.16, MongoDB Server 4.4.11, MongoDB Server 5.0.4	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in MongoDB. This flaw allows an attacker to maliciously crash MongoDB in a denial of service attack if they can cause an extremely long aggregation pipeline in conjunction with a specific stage/operator, which leads to a stack overflow due to the size of the stack frames used by that stage.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2076227, 2076228
Bug Blocks:	2074793

Description Avinash Hanwate 2022-04-13 06:01:52 UTC

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.

https://jira.mongodb.org/browse/SERVER-58203
https://jira.mongodb.org/browse/SERVER-60218
https://jira.mongodb.org/browse/SERVER-59299