Bug 1934763 (CVE-2020-7929)

Summary: CVE-2020-7929 mongodb: Denial of service through specially crafted regex
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: athomas, bkearney, databases-maint, hhorak, jjoyce, jorton, jschluet, lhh, lpeer, mburns, panovotn, sclewis, slinaber
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: mongodb 3.6.21, mongodb 4.0.20 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in mongodb. A user authorized to perform database queries may cause denial of service by issuing specially crafted queries, which violate an invariant in the query subsystem's support for $regex. The highest threat from this vulnerability is to system availability.
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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:
Bug Depends On: 1940401    
Bug Blocks: 1934766, 1934767, 1934769    

Description Pedro Sampaio 2021-03-03 19:23:37 UTC
A user authorized to perform database queries may trigger denial of service by issuing specially crafted query contain a type of regex. This issue affects: MongoDB Inc. MongoDB Server v3.6 versions prior to 3.6.21 and MongoDB Server v4.0 versions prior to 4.0.20.

References:

https://jira.mongodb.org/browse/SERVER-51083

Comment 3 Yadnyawalk Tale 2021-03-31 11:24:46 UTC
External References:

https://jira.mongodb.org/browse/SERVER-51083