Provide references for CVE-2018-20546.
Where can I find more information about CVE-2018-20546?
References are available at: https://usn.ubuntu.com/3860-2/, https://bugzilla.redhat.com/show_bug.cgi?id=1652622, https://lists.debian.org/debian-lts-announce/2019/01/msg00007.html, https://usn.ubuntu.com/3860-1/, http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00033.html, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6WFGYICNTMNDNMDDUV4G2RYFB5HNJCOV/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PC7EGOEQ5C4OD66ZUJJIIYEXBTZOCMZX/, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZSBCRN6EGQJUVOSD4OEEQ6XORHEM2CUL/, https://github.com/cacalabs/libcaca/issues/38, https://github.com/cacalabs/libcaca/commit/1022d97496c7899e8641515af363381b31ae2f05.