Bug 1214177 (CVE-2023-39961)

Summary:	VUL-0: CVE-2023-39961: nextcloud: image download restriction bypass
Product:	[openSUSE] openSUSE Distribution	Reporter:	Carlos López <carlos.lopez>
Component:	Security	Assignee:	Eric Schirra <ecsos>
Status:	NEW ---	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P3 - Medium
Version:	Leap 15.4
Target Milestone:	---
Hardware:	Other
OS:	Other
URL:	https://smash.suse.de/issue/374997/
Whiteboard:
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---

Description Carlos López 2023-08-11 08:46:38 UTC

CVE-2023-39961

Nextcloud Server provides data storage for Nextcloud, an open source cloud
platform. Starting in version 24.0.4 and prior to versions 25.0.9, 26.0.4, and
27.0.1, when a folder with images or an image was shared without download
permissions, the user could add the image inline into a text file and download
it. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud
Enterprise Server versions 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch
for this issue. No known workarounds are available.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-39961
https://www.cve.org/CVERecord?id=CVE-2023-39961
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qhgm-w4gx-gvgp
https://github.com/nextcloud/text/pull/4481
https://hackerone.com/reports/1965156

Comment 1 Eric Schirra 2024-04-16 08:10:57 UTC

All versions < 27 are end of life.
Version 28.0.4 os in devel and factory.
I have no rights for SLE.
osc mbranch only show sle.
So no more i can do.