Provide references for CVE-2018-21232.
Where can I find more information about CVE-2018-21232?
References are available at: https://github.com/skvadrik/re2c/issues/219, https://www.openwall.com/lists/oss-security/2020/04/27/2, http://www.openwall.com/lists/oss-security/2020/05/14/4.