End-to-End encrypted file-drops can be made inaccessible

Moderate

nickvergessen published GHSA-x7c7-v5r3-mg37

Jun 22, 2023

Package

End-to-End Encryption (Nextcloud)

Affected versions

>= 1.12.0

Patched versions

1.12.4

Description

Impact

By providing an invalid meta data file, an attacker can make previously dropped files inaccessible.

Patches

It is recommended that the Nextcloud End-to-end encryption app is upgraded to 1.12.4

Workarounds

No workaround available

References

For more information

If you have any questions or comments about this advisory:

Create a post in nextcloud/security-advisories
Customers: Open a support ticket at portal.nextcloud.com

Severity

Moderate

5.7

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

Low

User interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H