CVE-2020-8227

NameCVE-2020-8227
DescriptionMissing 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.
SourceCVE (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 PackageReleaseVersionStatus
nextcloud-desktop (PTS)buster (security), buster, buster (lts)2.5.1-3+deb10u2vulnerable
bullseye (security), bullseye3.1.1-2+deb11u1fixed
bookworm3.7.3-1+deb12u1fixed
trixie3.13.2-2fixed
sid3.15.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nextcloud-desktopsource(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

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