389-ds-base before versions 1.4.0.10, 1.3.8.3 is vulnerable to a race condition in the way 389-ds-base handles persistent search, resulting in a crash if the server is under load. An anonymous attacker could use this flaw to trigger a denial of service.
https://pagure.io/389-ds-base/issue/49768
https://pagure.io/389-ds-base/c/8f04487f99a
https://lists.debian.org/debian-lts-announce/2018/07/msg00018.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10850
https://access.redhat.com/errata/RHSA-2018:2757
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00033.html