CVE-2017-18018

In GNU Coreutils through 8.29, chown-core.c in chown and chgrp does not prevent replacement of a plain file with a symlink during use of the POSIX "-R -L" options, which allows local users to modify the ownership of arbitrary files by leveraging a race condition.

• coreutils (unimportant) http://lists.gnu.org/archive/html/coreutils/2017-12/msg00045.html https://www.openwall.com/lists/oss-security/2018/01/04/3 Documentation patches proposed: https://lists.gnu.org/archive/html/coreutils/2017-12/msg00072.html https://lists.gnu.org/archive/html/coreutils/2017-12/msg00073.html Neutralised by kernel hardening