Provide references for CVE-2021-30500.
Where can I find more information about CVE-2021-30500?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=1948692, https://github.com/upx/upx/issues/485, https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc.