There is a heap-based buffer over-read in the _nc_find_entry function in tinfo/comp_hash.c in the terminfo library in ncurses before 6.1-20191012.
lists.opensuse.org/opensuse-security-announce/2019-11/msg00059.html
lists.opensuse.org/opensuse-security-announce/2019-11/msg00061.html
access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
access.redhat.com/errata/RHSA-2021:4426
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1766745
lists.gnu.org/archive/html/bug-ncurses/2019-10/msg00017.html
lists.gnu.org/archive/html/bug-ncurses/2019-10/msg00045.html
security.gentoo.org/glsa/202101-28