The JPC_NOMINALGAIN function in jpc/jpc_t1cod.c in JasPer through 2.0.12 allows remote attackers to cause a denial of service (JPC_COX_RFT assertion failure) via unspecified vectors.
https://usn.ubuntu.com/3693-1/
https://bugzilla.redhat.com/show_bug.cgi?id=1485272
https://bugzilla.redhat.com/show_bug.cgi?id=1396978
https://blogs.gentoo.org/ago/2016/11/16/jasper-multiple-assertion-failure
https://access.redhat.com/errata/RHSA-2018:3505
https://access.redhat.com/errata/RHSA-2018:3253
http://www.securityfocus.com/bid/94379
http://www.openwall.com/lists/oss-security/2016/11/17/1
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00004.html