OpenSLP releases in the 1.0.2 and 1.1.0 code streams have a heap-related memory corruption issue which may manifest itself as a denial-of-service or a remote code-execution vulnerability.
https://usn.ubuntu.com/3708-1/
https://sourceforge.net/p/openslp/mercurial/ci/151f07745901cbdba6e00e4889561b4083250da1/
https://security.gentoo.org/glsa/202005-12
https://lists.debian.org/debian-lts-announce/2018/04/msg00029.html
https://access.redhat.com/errata/RHSA-2018:2308