Bug 2185950 (CVE-2023-28999) - CVE-2023-28999 nextloucd-client: malicious server administrator can gain full access to an end-to-end encrypted folder
Summary: CVE-2023-28999 nextloucd-client: malicious server administrator can gain full...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2023-28999
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2185952 2185951
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-04-11 17:35 UTC by Pedro Sampaio
Modified: 2023-04-11 23:35 UTC (History)
0 users

Fixed In Version:
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Last Closed: 2023-04-11 23:35:11 UTC
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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.​ 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.
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