Index: src/OFHTTPServer.m
==================================================================
--- src/OFHTTPServer.m
+++ src/OFHTTPServer.m
@@ -505,12 +505,17 @@
 		}
 
 		if (contentLength > 0) {
 			char *buffer;
 
+			if (contentLength < 0 ||
+			    (uintmax_t)contentLength > SIZE_MAX)
+				@throw [OFOutOfRangeException exception];
+
 			buffer = [self allocMemoryWithSize: BUFFER_SIZE];
 			_body = [[OFMutableData alloc] init];
+			_contentLength = contentLength;
 
 			[_socket asyncReadIntoBuffer: buffer
 					      length: BUFFER_SIZE
 					      target: self
 					    selector: @selector(socket: