diff options
Diffstat (limited to 'lang/mono2/patches/patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs')
-rw-r--r-- | lang/mono2/patches/patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/lang/mono2/patches/patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs b/lang/mono2/patches/patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs new file mode 100644 index 00000000000..71b889515f3 --- /dev/null +++ b/lang/mono2/patches/patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs @@ -0,0 +1,140 @@ +$NetBSD: patch-mcs_class_System.Web_System.Web.Util_SecureHashCodeProvider.cs,v 1.1 2014/11/30 21:51:44 spz Exp $ + +patch for CVE-2012-3543 taken from +https://github.com/mono/mono/commit/2ab1a051058fee5ea3aec2e071fba7000b693488 +part 1 + +--- mcs/class/System.Web/System.Web.Util/SecureHashCodeProvider.cs.orig 2014-11-29 12:16:37.000000000 +0000 ++++ mcs/class/System.Web/System.Web.Util/SecureHashCodeProvider.cs +@@ -0,0 +1,131 @@ ++// ++// System.Collections.SecureHashCodeProvider.cs ++// ++// Authors: ++// Sergey Chaban (serge@wildwestsoftware.com) ++// Andreas Nahr (ClassDevelopment@A-SoftTech.com) ++// Sebastien Pouliot <sebastien@ximian.com> ++// ++// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com) ++// Copyright 2012 Xamarin, Inc (http://xamarin.com) ++// ++// Permission is hereby granted, free of charge, to any person obtaining ++// a copy of this software and associated documentation files (the ++// "Software"), to deal in the Software without restriction, including ++// without limitation the rights to use, copy, modify, merge, publish, ++// distribute, sublicense, and/or sell copies of the Software, and to ++// permit persons to whom the Software is furnished to do so, subject to ++// the following conditions: ++// ++// The above copyright notice and this permission notice shall be ++// included in all copies or substantial portions of the Software. ++// ++// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, ++// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF ++// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND ++// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE ++// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION ++// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION ++// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ++// ++using System; ++using System.Collections; ++using System.Globalization; ++ ++namespace System.Web.Util ++{ ++ class SecureHashCodeProvider : IHashCodeProvider ++ { ++ static readonly SecureHashCodeProvider singletonInvariant = new SecureHashCodeProvider (CultureInfo.InvariantCulture); ++ static SecureHashCodeProvider singleton; ++ static readonly object sync = new object (); ++ static readonly int seed; ++ ++ TextInfo m_text; // must match MS name for serialization ++ ++ public static SecureHashCodeProvider Default { ++ get { ++ lock (sync) { ++ if (singleton == null) { ++ singleton = new SecureHashCodeProvider (); ++ } else if (singleton.m_text == null) { ++ if (!AreEqual (CultureInfo.CurrentCulture, CultureInfo.InvariantCulture)) ++ singleton = new SecureHashCodeProvider (); ++ } else if (!AreEqual (singleton.m_text, CultureInfo.CurrentCulture)) { ++ singleton = new SecureHashCodeProvider (); ++ } ++ return singleton; ++ } ++ } ++ } ++ ++ public static SecureHashCodeProvider DefaultInvariant { ++ get { return singletonInvariant; } ++ } ++ ++ static SecureHashCodeProvider () ++ { ++ // It should be enough to fend off the attack described in ++ // https://bugzilla.novell.com/show_bug.cgi?id=739119 ++ // In order to predict value of the seed, the attacker would have to know the exact time when ++ // the server process started and since it's a remote attack, this is next to impossible. ++ // Using milliseconds instead of ticks here would make it easier for the attackers since there ++ // would only be as many as 1000 possible values ++ seed = (int)DateTime.UtcNow.Ticks; ++ } ++ ++ // Public instance constructor ++ public SecureHashCodeProvider () ++ { ++ CultureInfo culture = CultureInfo.CurrentCulture; ++ if (!AreEqual (culture, CultureInfo.InvariantCulture)) ++ m_text = CultureInfo.CurrentCulture.TextInfo; ++ } ++ ++ public SecureHashCodeProvider (CultureInfo culture) ++ { ++ if (culture == null) ++ throw new ArgumentNullException ("culture"); ++ if (!AreEqual (culture, CultureInfo.InvariantCulture)) ++ m_text = culture.TextInfo; ++ } ++ ++ static bool AreEqual (CultureInfo a, CultureInfo b) ++ { ++ return a.LCID == b.LCID; ++ } ++ ++ static bool AreEqual (TextInfo info, CultureInfo culture) ++ { ++ return info.LCID == culture.LCID; ++ } ++ ++ public int GetHashCode (object obj) ++ { ++ if (obj == null) ++ throw new ArgumentNullException ("obj"); ++ ++ string str = obj as string; ++ ++ if (str == null) ++ return obj.GetHashCode (); ++ ++ int h = seed; ++ char c; ++ ++ if ((m_text != null) && !AreEqual (m_text, CultureInfo.InvariantCulture)) { ++ str = m_text.ToLower (str); ++ for (int i = 0; i < str.Length; i++) { ++ c = str [i]; ++ h = h * 31 + c; ++ } ++ } else { ++ for (int i = 0; i < str.Length; i++) { ++ c = Char.ToLower (str [i], CultureInfo.InvariantCulture); ++ h = h * 31 + c; ++ } ++ } ++ return h; ++ } ++ } ++} |