CVE - CVE-2021-32802

CVE-ID
CVE-2021-32802	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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`.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m682-v4g9-wrq7 URL:https://github.com/nextcloud/security-advisories/security/advisories/GHSA-m682-v4g9-wrq7 GENTOO:GLSA-202208-17 URL:https://security.gentoo.org/glsa/202208-17 MISC:https://docs.nextcloud.com/server/21/admin_manual/configuration_files/previews_configuration.html#disabling-previews URL:https://docs.nextcloud.com/server/21/admin_manual/configuration_files/previews_configuration.html#disabling-previews MISC:https://hackerone.com/reports/1261413 URL:https://hackerone.com/reports/1261413
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20210512	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20210512)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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