lib-mail: message-address: Make parser properly reject paths with spu…

…rious trailing characters.

src/lib-mail/message-address.c

@@ -396,6 +396,8 @@ static int parse_path(struct message_address_parser_context *ctx)
 	if (*ctx->parser.data != '<')
 		return -1;
 	if ((ret=parse_angle_addr(ctx, TRUE)) < 0 ||
+	    (ret=rfc822_skip_lwsp(&ctx->parser)) < 0 ||
+	    ctx->parser.data != ctx->parser.end ||
 	    (ctx->addr.mailbox != NULL &&
 	     (ctx->addr.domain == NULL || *ctx->addr.domain == '\0')) ||
 	    (ctx->addr.mailbox == NULL && ctx->addr.domain != NULL)) {

src/lib-mail/test-message-address.c

@@ -415,6 +415,7 @@ static void test_message_address_path_invalid(void)
 		"<@route@route2:user>",
 		"<@domain>",
 		"<user@>",
+		"<user@domain>bladiebla",
 	};
 	const struct message_address *addr;
 	unsigned int i;