Contains fixes for:
* CVE-2021-41771: ImportedSymbols in debug/macho (for Open or OpenFat)
accesses a memory location after the end of a buffer
* CVE-2021-41772: archive/zip Reader.Open panic via a crafted ZIP
archive containing an invalid name or an empty filename field
Signed-off-by: Jeffery To <jeffery.to@gmail.com>