Provide references for CVE-2018-15580.
Where can I find more information about CVE-2018-15580?
References are available at: https://github.com/gnuboard/gnuboard5/commit/b1fc952c7600b825c4b02e2789ddafdea18c8d13#diff-4182a3e8b74f6eb325c45862f8f26e76.