Provide references for CVE-2018-7998.
Where can I find more information about CVE-2018-7998?
References are available at: https://github.com/jcupitt/libvips/commit/20d840e6da15c1574b3ed998bc92f91d1e36c2a5, https://github.com/jcupitt/libvips/issues/893, https://lists.debian.org/debian-lts-announce/2018/03/msg00009.html.