Provide references for CVE-2021-30501.
Where can I find more information about CVE-2021-30501?
References are available at: https://bugzilla.redhat.com/show_bug.cgi?id=1948696, https://github.com/upx/upx/issues/486, https://github.com/upx/upx/pull/487, https://github.com/upx/upx/commit/28e761cd42211dfe0124b7a29b2f74730f453e46.