Bug 1900847 (CVE-2018-20802)

Summary:	CVE-2018-20802 mongodb: Denial of service via crafted queries with compound indexes affecting QueryPlanner
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	admiller, athomas, bkearney, clalancette, databases-maint, dbecker, gghezzo, gparvin, hhorak, jjoyce, jorton, jpacner, jramanat, jschluet, jweiser, lhh, lpeer, mburns, mskalicky, panovotn, sclewis, slinaber, stcannon, strobert, tdawson, thee
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mongodb 3.6.9, mongodb 4.0.3, mongodb 4.1.4	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-12-04 23:02:51 UTC	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:	1900848
Bug Blocks:	1900872

Description Pedro Sampaio 2020-11-23 20:36:39 UTC

A user authorized to perform database queries may trigger denial of service by issuing specially crafted queries with compound indexes affecting QueryPlanner. This issue affects: MongoDB Inc. MongoDB Server v3.6 versions prior to 3.6.9, v4.0 versions prior to 4.0.3.

Upstream bug:

https://jira.mongodb.org/browse/SERVER-36993

Comment 1 Pedro Sampaio 2020-11-23 20:37:22 UTC

Created mongodb tracking bugs for this issue:

Affects: epel-all [bug 1900848]

Comment 2 Riccardo Schirone 2020-11-30 17:10:51 UTC

Upstream patch:
https://github.com/mongodb/mongo/commit/ee97c0699fd55b498310996ee002328e533681a3

Comment 3 Riccardo Schirone 2020-11-30 17:12:39 UTC

The flaw is in the ExprMatchExpression class. The version of mongodb as shipped in RHUI-3 does not contain that class, thus it is not affected by this flaw.

Comment 4 Yadnyawalk Tale 2020-11-30 17:35:59 UTC

Red Hat Satellite 6.6 onward does not ship the MongoDB package; however, the product consumes MongoDB from Red Hat Software Collections (RHSCL) for Red Hat Enterprise Linux. Satellite has no plans to update to a version of MongoDB released with a Server Side Public License (SSPL) which includes all versions released after October 16, 2018. Refer to this article for more information: https://access.redhat.com/articles/5767021

Comment 5 Product Security DevOps Team 2020-12-04 23:02:51 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2018-20802