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Gentoo Linux: CVE-2021-32656: Nextcloud: Multiple Vulnerabilities

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Gentoo Linux: CVE-2021-32656: Nextcloud: Multiple Vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
06/01/2021
Created
08/29/2022
Added
08/11/2022
Modified
08/11/2022

Description

Nextcloud Server is a Nextcloud package that handles data storage. A vulnerability in federated share exists in versions prior to 19.0.11, 20.0.10, and 21.0.2. An attacker can gain access to basic information about users of a server by accessing a public link that a legitimate server user added as a federated share. This happens because Nextcloud supports sharing registered users with other Nextcloud servers, which can be done automatically when selecting the "Add server automatically once a federated share was created successfully" setting. The vulnerability is patched in versions 19.0.11, 20.0.10, and 21.0.2 As a workaround, disable "Add server automatically once a federated share was created successfully" in the Nextcloud settings.

Solution(s)

  • gentoo-linux-upgrade-www-apps-nextcloud

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