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Debian: CVE-2021-32728: nextcloud-desktop -- security update

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Debian: CVE-2021-32728: nextcloud-desktop -- security update

Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
08/18/2021
Created
09/21/2021
Added
09/20/2021
Modified
09/22/2021

Description

The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server with a computer. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.3.0, the Nextcloud Desktop client fails to check if a private key belongs to previously downloaded public certificate. If the Nextcloud instance serves a malicious public key, the data would be encrypted for this key and thus could be accessible to a malicious actor. This issue is fixed in Nextcloud Desktop Client version 3.3.0. There are no known workarounds aside from upgrading.

Solution(s)

  • debian-upgrade-nextcloud-desktop

References

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