Windows 2003/XP gethostbyaddr() NULL pointer bug

If invalid CNAME in reverse lookup zone is specified, gethostbyaddr returns hostent structure with name pointer set to NULL...

Windows XP SP1 gethostbyaddr() flow (Re[3]: mirc32 6.0x crash when resolving dns.)

Dear vulndev, It's definitely bug in Windows XP SP1, as it was supposed by Roland Postle [email protected] To reproduce it: 1. Created zone 1.168.192.in-addr.arpa and add record: 254 IN CNAME non.existant.name 2. Use test program attached 3. I did tests on Windows NT 4.0, Windows 2000 and Windows...