Array Index Out of Bound Bug Issue

[piyapan039285]

I have noticed that array inbuf in method (id) initWithBase64EncodedString:(NSString *) string of file NSData+Base64.m is decleared with unsigned char inbuf[3]. However, code in line 79 uses out-of-bound array index:

outbuf [2] = ( ( inbuf[2] & 0x03 ) << 6 ) | ( inbuf[3] & 0x3F ); //inbuf[3] is out-of-bound

I think array inbuf should be declared as unsigned char inbuf[4] to prevent array out-of-bound access violation.