The jpc_floorlog2 function in jpc_math.c in JasPer before 1.900.17 allows remote attackers to cause a denial of service (assertion failure) via unspecified vectors.
lists.opensuse.org/opensuse-security-announce/2017-01/msg00008.html
lists.opensuse.org/opensuse-security-announce/2017-01/msg00009.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00082.html
lists.opensuse.org/opensuse-security-announce/2020-09/msg00085.html
www.openwall.com/lists/oss-security/2016/11/17/1
www.securityfocus.com/bid/94382
blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failure
bugzilla.redhat.com/show_bug.cgi?id=1396980
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4ALB4SXHURLVWKAOKYRNJXPABW3M22M/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPOVZTSIQPW2H4AFLMI3LHJEZGBVEQET/