libcaca -- Multiple vulnerabilities

Sam Hocevar reports: Multiple memory leaks and invalid memory accesses: CVE-2018-20545: Illegal WRITE memory access at common-image.c CVE-2018-20546: Illegal READ memory access at caca/dither.c CVE-2018-20547: Illegal READ memory access at caca/dither.c CVE-2018-20548: Illegal WRITE memory access...