Bug 1921309 (CVE-2020-8295)

Summary:	CVE-2020-8295 nextcloud: Denial of service attack when resetting the password for a user
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ce, james.hogarth
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2021-01-28 02:41:37 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1921311
Bug Blocks:

Description Pedro Sampaio 2021-01-27 21:05:17 UTC

A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user.

https://hackerone.com/reports/812754
https://nextcloud.com/security/advisory/?id=NC-SA-2021-003

Comment 1 Pedro Sampaio 2021-01-27 21:06:14 UTC

Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1921311]

Comment 2 Christopher Engelhard 2021-01-27 22:02:22 UTC

Can whoever manages these monitoring scripts please make them check if any affected versions are actually in the repositories?

Comment 3 Product Security DevOps Team 2021-01-28 02:41:37 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.