From 037af6890fe6fdb84a08d3c86083e847c90ec0ad Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 22 Oct 2013 08:17:26 -0400
Subject: [PATCH] Fix vulnerability in handling _session argument of utils/save-prefs (#1489382)

---
 program/lib/Roundcube/html.php |   39 ++++++++++++++++++++++++++-------------
 1 files changed, 26 insertions(+), 13 deletions(-)

diff --git a/program/lib/Roundcube/html.php b/program/lib/Roundcube/html.php
index 8ff685a..1a4c3be 100644
--- a/program/lib/Roundcube/html.php
+++ b/program/lib/Roundcube/html.php
@@ -2,8 +2,6 @@
 
 /*
  +-----------------------------------------------------------------------+
- | program/include/html.php                                              |
- |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
  | Copyright (C) 2005-2011, The Roundcube Dev Team                       |
  |                                                                       |
@@ -13,7 +11,6 @@
  |                                                                       |
  | PURPOSE:                                                              |
  |   Helper class to create valid XHTML code                             |
- |                                                                       |
  +-----------------------------------------------------------------------+
  | Author: Thomas Bruederli <roundcube@gmail.com>                        |
  +-----------------------------------------------------------------------+
@@ -37,6 +34,7 @@
     public static $lc_tags = true;
     public static $common_attrib = array('id','class','style','title','align');
     public static $containers = array('iframe','div','span','p','h1','h2','h3','form','textarea','table','thead','tbody','tr','th','td','style','script');
+
 
     /**
      * Constructor
@@ -172,7 +170,7 @@
             $attr = array('href' => $attr);
         }
         return self::tag('a', $attr, $cont, array_merge(self::$common_attrib,
-        array('href','target','name','rel','onclick','onmouseover','onmouseout','onmousedown','onmouseup')));
+            array('href','target','name','rel','onclick','onmouseover','onmouseout','onmousedown','onmouseup')));
     }
 
     /**
@@ -335,7 +333,16 @@
      */
     public static function quote($str)
     {
-        return @htmlspecialchars($str, ENT_COMPAT, RCMAIL_CHARSET);
+        static $flags;
+
+        if (!$flags) {
+            $flags = ENT_COMPAT;
+            if (defined('ENT_SUBSTITUTE')) {
+                $flags |= ENT_SUBSTITUTE;
+            }
+        }
+
+        return @htmlspecialchars($str, $flags, RCUBE_CHARSET);
     }
 }
 
@@ -678,7 +685,7 @@
         }
 
         $cell = new stdClass;
-        $cell->attrib = $attr;
+        $cell->attrib  = $attr;
         $cell->content = $cont;
 
         $this->rows[$this->rowindex]->cells[$this->colindex] = $cell;
@@ -702,16 +709,16 @@
         }
 
         $cell = new stdClass;
-        $cell->attrib = $attr;
-        $cell->content = $cont;
+        $cell->attrib   = $attr;
+        $cell->content  = $cont;
         $this->header[] = $cell;
     }
 
-     /**
+    /**
      * Remove a column from a table
      * Useful for plugins making alterations
-     * 
-     * @param string $class 
+     *
+     * @param string $class
      */
     public function remove_column($class)
     {
@@ -764,6 +771,11 @@
             $index = $this->rowindex;
         }
 
+        // make sure row object exists (#1489094)
+        if (!$this->rows[$index]) {
+            $this->rows[$index] = new stdClass;
+        }
+
         $this->rows[$index]->attrib = $attr;
     }
 
@@ -791,8 +803,9 @@
      */
     public function show($attrib = null)
     {
-        if (is_array($attrib))
+        if (is_array($attrib)) {
             $this->attrib = array_merge($this->attrib, $attrib);
+        }
 
         $thead = $tbody = "";
 
@@ -834,7 +847,7 @@
      */
     public function size()
     {
-      return count($this->rows);
+        return count($this->rows);
     }
 
     /**

--
Gitblit v1.9.1