Provide references for CVE-2017-18238.
Where can I find more information about CVE-2017-18238?
References are available at: https://cgit.freedesktop.org/exempi/commit/?id=886cd1d2314755adb1f4cdb99c16ff00830f0331, https://bugs.freedesktop.org/show_bug.cgi?id=102483, https://lists.debian.org/debian-lts-announce/2018/03/msg00013.html, https://usn.ubuntu.com/3668-1/, https://access.redhat.com/errata/RHSA-2019:2048.