Bug 2185950 (CVE-2023-28999)

Summary:	CVE-2023-28999 nextloucd-client: malicious server administrator can gain full access to an end-to-end encrypted folder
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
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:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2023-04-11 23:35:11 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:	2185952, 2185951
Bug Blocks:

Description Pedro Sampaio 2023-04-11 17:35:41 UTC

CVE-2023-28999[0]:
| Nextcloud is an open-source productivity platform. In Nextcloud
| Desktop client 3.0.0 until 3.8.0, Nextcloud Android app 3.13.0 until
| 3.25.0, and Nextcloud iOS app 3.0.5 until 4.8.0, a malicious server
| administrator can gain full access to an end-to-end encrypted folder.
| They can decrypt files, recover the folder structure and add new
| files.&#8203; This issue is fixed in Nextcloud Desktop 3.8.0,
| Nextcloud Android 3.25.0, and Nextcloud iOS 4.8.0. No known
| workarounds are available.

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8875-wxww-3rr8
https://github.com/nextcloud/desktop/pull/5560

Comment 1 Pedro Sampaio 2023-04-11 17:36:00 UTC

Created nextcloud-client tracking bugs for this issue:

Affects: epel-all [bug 2185952]
Affects: fedora-all [bug 2185951]

Comment 2 Product Security DevOps Team 2023-04-11 23:35:09 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.