--- extract.c	2010-04-05 11:25:49.510402918 -0300

+++ extract.c	2010-04-05 11:26:56.657533584 -0300

@@ -1868,7 +1868,12 @@

 		if (((foundat + headersize) - buf) > buflen){ return NULL; }	

 		foundat += headersize;

-		

+

+		if (foundat >= (buf + buflen))

+		{

+			return buf + needle->header_len;

+		}

+

 		if (foundat[2] != (unsigned char)'\xff')

 			{

 			break;