Upstream information

CVE-2021-32802 at MITRE


Nextcloud server is an open source, self hosted personal cloud. Nextcloud supports rendering image previews for user provided file content. For some image types, the Nextcloud server was invoking a third-party library that wasn't suited for untrusted user-supplied content. There are several security concerns with passing user-generated content to this library, such as Server-Side-Request-Forgery, file disclosure or potentially executing code on the system. The risk depends on your system configuration and the installed library version. It is recommended that the Nextcloud Server is upgraded to 20.0.12, 21.0.4 or 22.1.0. These versions do not use this library anymore. As a workaround users may disable previews by setting `enable_previews` to `false` in `config.php`.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having critical severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 10
Vector AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 9.8
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1190291 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 12
  • nextcloud >= 20.0.12-31.1
  • nextcloud-apache >= 20.0.12-31.1
SUSE Package Hub 15 SP1
  • nextcloud >= 20.0.12-bp151.3.18.1
  • nextcloud-apache >= 20.0.12-bp151.3.18.1
SUSE Package Hub 15 SP2
  • nextcloud >= 20.0.12-bp152.2.12.1
  • nextcloud-apache >= 20.0.12-bp152.2.12.1
SUSE Package Hub 15 SP3
  • nextcloud >= 20.0.12-bp153.2.6.1
  • nextcloud-apache >= 20.0.12-bp153.2.6.1
openSUSE Leap 15.2
  • nextcloud >= 20.0.12-lp152.3.12.1
  • nextcloud-apache >= 20.0.12-lp152.3.12.1
openSUSE Leap 15.3
  • nextcloud >= 20.0.12-bp153.2.6.1
  • nextcloud-apache >= 20.0.12-bp153.2.6.1

SUSE Timeline for this CVE

CVE page created: Wed Sep 8 10:30:11 2021
CVE page last modified: Tue May 23 18:08:35 2023