PostgreSQL versions 10.x before 10.9 and versions 11.x before 11.4 are vulnerable to a stack-based buffer overflow. Any authenticated user can overflow a stack-based buffer by changing the user’s own password to a purpose-crafted value. This often suffices to execute arbitrary code as the PostgreSQL operating system account.
lists.opensuse.org/opensuse-security-announce/2019-07/msg00035.html
bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10164
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MAGE6H4FWLKFLHLWVYNPYGQRPIXTUWGB/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTKEHXGDXYYD6WYDIIQJP4GDQJSENDJK/
security.gentoo.org/glsa/202003-03
www.postgresql.org/about/news/1949/