CVE-2021-32802 Common Vulnerabilities and Exposures

Upstream information

CVE-2021-32802 at MITRE

Description

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:

openSUSE-SU-2021:1250-1, published Mon Sep 13 21:40:07 2021
openSUSE-SU-2021:1252-1, published Tue Sep 14 15:34:41 2021
openSUSE-SU-2021:1253-1, published Tue Sep 14 15:34:41 2021
openSUSE-SU-2021:1255-1, published Tue Sep 14 15:34:41 2021
openSUSE-SU-2021:1275-1, published Thu Sep 16 15:41:22 2021

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`	Patchnames: openSUSE-2021-1252
SUSE Package Hub 15 SP1	`nextcloud >= 20.0.12-bp151.3.18.1` `nextcloud-apache >= 20.0.12-bp151.3.18.1`	Patchnames: openSUSE-2021-1250
SUSE Package Hub 15 SP2	`nextcloud >= 20.0.12-bp152.2.12.1` `nextcloud-apache >= 20.0.12-bp152.2.12.1`	Patchnames: openSUSE-2021-1275
SUSE Package Hub 15 SP3	`nextcloud >= 20.0.12-bp153.2.6.1` `nextcloud-apache >= 20.0.12-bp153.2.6.1`	Patchnames: openSUSE-2021-1255
openSUSE Leap 15.2	`nextcloud >= 20.0.12-lp152.3.12.1` `nextcloud-apache >= 20.0.12-lp152.3.12.1`	Patchnames: openSUSE-2021-1253
openSUSE Leap 15.3	`nextcloud >= 20.0.12-bp153.2.6.1` `nextcloud-apache >= 20.0.12-bp153.2.6.1`	Patchnames: openSUSE-2021-1255

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