CVE-2020-8227

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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, 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, sid	3.6.4-1	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

[buster] - nextcloud-desktop <no-dsa> (Minor issue)
https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
https://hackerone.com/reports/685552