SUSE CVE-2017-18078

systemd-tmpfiles in systemd before 237 attempts to support ownership/permission changes on hardlinked files even if the fs.protectedhardlinks sysctl is turned off, which allows local users to bypass intended access restrictions via vectors involving a hard link to a file for which the user lacks...

UBUNTU-CVE-2017-18188

OpenRC opentmpfiles through 0.1.3, when the fs.protectedhardlinks sysctl is turned off, allows local users to obtain ownership of arbitrary files by creating a hard link inside a directory on which "chown -R" will be run...