Provide references for CVE-2019-13917.
Where can I find more information about CVE-2019-13917?
References are available at: http://exim.org/static/doc/security/CVE-2019-13917.txt, https://www.debian.org/security/2019/dsa-4488, http://www.openwall.com/lists/oss-security/2019/07/26/5, https://seclists.org/bugtraq/2019/Jul/51, https://security.gentoo.org/glsa/201909-06.