10th July 2020
Risk level: Low
CVSS v3 Base Score: 5.9 (AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H)
CWE: Denial of Service (CWE-400)
HackerOne report: 588562
A memory leak in the OCUtil.dll library used by Nextcloud Desktop Client 2.6.4 can lead to a DoS against the host system.
The error has been fixed.
It is recommended that the Nextcloud Desktop Client is upgraded to 2.6.5.
The Nextcloud team thanks the following people for their research and responsible disclosure of the above advisory: