| Name | CVE-2020-8227 |
| Description | Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| nextcloud-desktop (PTS) | buster, buster (security) | 2.5.1-3+deb10u2 | vulnerable |
| bullseye (security), bullseye | 3.1.1-2+deb11u1 | fixed |
| bookworm | 3.7.3-1 | fixed |
| sid, trixie | 3.9.0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| nextcloud-desktop | source | (unstable) | 3.0.1-1 | | | |
Notes
[buster] - nextcloud-desktop <no-dsa> (Minor issue)
https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
https://hackerone.com/reports/685552