Provide references for CVE-2021-3881.
Where can I find more information about CVE-2021-3881?
References are available at: https://huntr.dev/bounties/540fd115-7de4-4e19-a918-5ee61f5157c1, https://github.com/bfabiszewski/libmobi/commit/bec783e6212439a335ba6e8df7ab8ed610ca9a21.