The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.
The product does not validate, or incorrectly validates, a certificate.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Desktop | Nextcloud | 3.0.0 (including) | 3.7.0 (excluding) |
| Nextcloud-desktop | Ubuntu | kinetic | * |
| Nextcloud-desktop | Ubuntu | trusty | * |
| Nextcloud-desktop | Ubuntu | upstream | * |
| Nextcloud-desktop | Ubuntu | xenial | * |