Resource management error in Nextcloud Server - CVE-2020-8293
Published: January 25, 2021
Vulnerability identifier: #VU49974
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8293
CWE-ID: CWE-399
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when storing data in workflow rules. A remote user can store a huge amount of data and perform a denial of service (DoS) attack.
Affected software
Nextcloud Server
How to mitigate CVE-2020-8293
Install updates from vendor's website.
Nextcloud Server - addressed in versions 18.0.11, 19.0.5, 20.0.2