Lout 3.40 has a heap-based buffer overflow in the srcnext() function in z02.c.
lists.opensuse.org/opensuse-security-announce/2020-10/msg00068.html
lists.opensuse.org/opensuse-security-announce/2020-10/msg00069.html
lists.opensuse.org/opensuse-security-announce/2020-11/msg00010.html
lists.opensuse.org/opensuse-security-announce/2020-11/msg00011.html
lists.fedoraproject.org/archives/list/[email protected]/message/5OXECUBSXEO7S3TCLSBCITLQIMOCL6MV/
lists.fedoraproject.org/archives/list/[email protected]/message/NEJVEIQMRXJ26ZT6657W5RYH7YECVGNB/
lists.fedoraproject.org/archives/list/[email protected]/message/QGZKTKGRJTQE43SFU77X5QJHKXTTOJYB/
lists.gnu.org/archive/html/lout-users/2019-12/msg00001.html