Provide references for CVE-2019-18976.
Where can I find more information about CVE-2019-18976?
References are available at: https://www.asterisk.org/downloads/security-advisories, https://www.cybersecurity-help.cz/vdb/SB2019112218?affChecked=1, https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html, https://seclists.org/fulldisclosure/2019/Nov/20, http://downloads.asterisk.org/pub/security/AST-2019-008.html, https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html.