diff --git a/src/Symfony/Component/HttpFoundation/File/File.php b/src/Symfony/Component/HttpFoundation/File/File.php
index d3d20f583a..729d870cfc 100644
--- a/src/Symfony/Component/HttpFoundation/File/File.php
+++ b/src/Symfony/Component/HttpFoundation/File/File.php
@@ -106,6 +106,20 @@ class File extends \SplFileInfo
      * @api
      */
     public function move($directory, $name = null)
+    {
+        $target = $this->getTargetFile($directory, $name);
+
+        if (!@rename($this->getPathname(), $target)) {
+            $error = error_get_last();
+            throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error['message'])));
+        }
+
+        @chmod($target, 0666 & ~umask());
+
+        return $target;
+    }
+
+    protected function getTargetFile($directory, $name = null)
     {
         if (!is_dir($directory)) {
             if (false === @mkdir($directory, 0777, true)) {
@@ -117,14 +131,7 @@ class File extends \SplFileInfo
 
         $target = $directory.DIRECTORY_SEPARATOR.(null === $name ? $this->getBasename() : $this->getName($name));
 
-        if (!@rename($this->getPathname(), $target)) {
-            $error = error_get_last();
-            throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error['message'])));
-        }
-
-        @chmod($target, 0666 & ~umask());
-
-        return new File($target);
+        return new File($target, false);
     }
 
     /**
diff --git a/src/Symfony/Component/HttpFoundation/File/UploadedFile.php b/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
index 69d653497a..d201e2dc03 100644
--- a/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
+++ b/src/Symfony/Component/HttpFoundation/File/UploadedFile.php
@@ -189,8 +189,21 @@ class UploadedFile extends File
      */
     public function move($directory, $name = null)
     {
-        if ($this->isValid() && ($this->test || is_uploaded_file($this->getPathname()))) {
-            return parent::move($directory, $name);
+        if ($this->isValid()) {
+            if ($this->test) {
+                return parent::move($directory, $name);
+            } elseif (is_uploaded_file($this->getPathname())) {
+                $target = $this->getTargetFile($directory, $name);
+
+                if (!@move_uploaded_file($this->getPathname(), $target)) {
+                    $error = error_get_last();
+                    throw new FileException(sprintf('Could not move the file "%s" to "%s" (%s)', $this->getPathname(), $target, strip_tags($error['message'])));
+                }
+
+                @chmod($target, 0666 & ~umask());
+
+                return $target;
+            }
         }
 
         throw new FileException(sprintf('The file "%s" has not been uploaded via Http', $this->getPathname()));
diff --git a/src/Symfony/Component/HttpFoundation/Request.php b/src/Symfony/Component/HttpFoundation/Request.php
index f7b1c25b81..0daf81d723 100644
--- a/src/Symfony/Component/HttpFoundation/Request.php
+++ b/src/Symfony/Component/HttpFoundation/Request.php
@@ -974,6 +974,8 @@ class Request
      *
      * @return string
      *
+     * @throws \UnexpectedValueException when the host name is invalid
+     *
      * @api
      */
     public function getHost()
@@ -981,20 +983,24 @@ class Request
         if (self::$trustProxy && self::$trustedHeaders[self::HEADER_CLIENT_HOST] && $host = $this->headers->get(self::$trustedHeaders[self::HEADER_CLIENT_HOST])) {
             $elements = explode(',', $host);
 
-            $host = trim($elements[count($elements) - 1]);
-        } else {
-            if (!$host = $this->headers->get('HOST')) {
-                if (!$host = $this->server->get('SERVER_NAME')) {
-                    $host = $this->server->get('SERVER_ADDR', '');
-                }
+            $host = $elements[count($elements) - 1];
+        } elseif (!$host = $this->headers->get('HOST')) {
+            if (!$host = $this->server->get('SERVER_NAME')) {
+                $host = $this->server->get('SERVER_ADDR', '');
             }
         }
 
-        // Remove port number from host
-        $host = preg_replace('/:\d+$/', '', $host);
-
+        // trim and remove port number from host
         // host is lowercase as per RFC 952/2181
-        return trim(strtolower($host));
+        $host = strtolower(trim(preg_replace('/:\d+$/', '', $host)));
+
+        // as the host can come from the user (HTTP_HOST and depending on the configuration, SERVER_NAME too can come from the user)
+        // check that it does not contain forbidden characters (see RFC 952 and RFC 2181)
+        if ($host && !preg_match('/^\[?(?:[a-zA-Z0-9-:\]_]+\.?)+$/', $host)) {
+            throw new \UnexpectedValueException('Invalid Host');
+        }
+
+        return $host;
     }
 
     /**
diff --git a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
index 07376cedb8..535ebfc9a3 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/RequestTest.php
@@ -560,9 +560,6 @@ class RequestTest extends \PHPUnit_Framework_TestCase
         $this->assertNull($request->getQueryString(), '->getQueryString() returns null for empty query string');
     }
 
-    /**
-     * @covers Symfony\Component\HttpFoundation\Request::getHost
-     */
     public function testGetHost()
     {
         $request = new Request();
@@ -586,6 +583,16 @@ class RequestTest extends \PHPUnit_Framework_TestCase
         $this->stopTrustingProxyData();
     }
 
+    /**
+     * @expectedException RuntimeException
+     */
+    public function testGetHostWithFakeHttpHostValue()
+    {
+        $request = new Request();
+        $request->initialize(array(), array(), array(), array(), array(), array('HTTP_HOST' => 'www.host.com?query=string'));
+        $request->getHost();
+    }
+
     /**
      * @covers Symfony\Component\HttpFoundation\Request::setMethod
      * @covers Symfony\Component\HttpFoundation\Request::getMethod