There is floating point exception at caca/dither.c (function
caca_dither_bitmap) in libcaca 0.99.beta19.
bugzilla.redhat.com/show_bug.cgi?id=1652627
github.com/cacalabs/libcaca/issues/36
launchpad.net/bugs/cve/CVE-2018-20544
nvd.nist.gov/vuln/detail/CVE-2018-20544
security-tracker.debian.org/tracker/CVE-2018-20544
ubuntu.com/security/notices/USN-3860-1
ubuntu.com/security/notices/USN-3860-2
www.cve.org/CVERecord?id=CVE-2018-20544