CVE-2021-32728
18.08.2021, 16:15
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.Enginsight
Vendor | Product | Version |
---|---|---|
nextcloud | desktop | 𝑥 < 3.3.0 |
debian | debian_linux | 10.0 |
debian | debian_linux | 11.0 |
𝑥
= Vulnerable software versions

Debian Releases

Ubuntu Releases
Common Weakness Enumeration
References