The calcstepsizes function in jpc_dec.c in JasPer 1.900.22 allows remote attackers to cause a denial of service (assertion failure) via unspecified vectors.
https://bugzilla.redhat.com/show_bug.cgi?id=1396981
https://blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failure
http://www.securityfocus.com/bid/94380
http://www.openwall.com/lists/oss-security/2016/11/17/1
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00085.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00082.html