An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file ownership because setfsuid is not used.
https://usn.ubuntu.com/4053-1/
https://gitlab.gnome.org/GNOME/gvfs/commit/d7d362995aa0cb8905c8d5c2a2a4c305d2ffff80
http://www.openwall.com/lists/oss-security/2019/07/09/3
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00009.html
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00008.html