Bug 2148815 (CVE-2022-39346)

Summary:	CVE-2022-39346 nextcloud: Missing length validation of user displayname allows to generate an SQL error
Product:	[Other] Security Response	Reporter:	Sandipan Roy <saroy>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	Keywords:	Security
Target Milestone:	---
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Hardware:	All
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2022-12-08 19:03:49 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2148816, 2148817
Bug Blocks:

Description Sandipan Roy 2022-11-28 04:34:14 UTC

Nextcloud server is an open source personal cloud server. Affected versions of nextcloud server did not properly limit user display names which could allow a malicious users to overload the backing database and cause a denial of service. It is recommended that the Nextcloud Server is upgraded to 22.2.10, 23.0.7 or 24.0.3. There are no known workarounds for this issue.

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6w9f-jgjx-4vj6
https://github.com/nextcloud/server/pull/33052
https://hackerone.com/reports/1588562

Comment 1 Sandipan Roy 2022-11-28 04:34:56 UTC

Created nextcloud tracking bugs for this issue:

Affects: epel-all [bug 2148817]
Affects: fedora-all [bug 2148816]

Comment 2 Product Security DevOps Team 2022-12-08 19:03:45 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.