vdrleaktest in Video Disk Recorder (aka vdr-dbg or vdr) 1.6.0 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/memleaktest.log temporary file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44880
https://bugs.gentoo.org/show_bug.cgi?id=235827
https://bugs.gentoo.org/show_bug.cgi?id=235770