U radu programskog paketa .NET Framework uočen je nov sigurnosni nedostatak koji zlonamjernim korisnicima omogućuje udaljeno izvršavanje proizvoljnog programskog koda.
| Paket: | Microsoft .NET Framework 2.x, Microsoft .NET Framework 3.x, Microsoft .NET Framework 4.x |
| Operacijski sustavi: | Microsoft Windows XP, Microsoft Windows Server 2003, Microsoft Windows Vista, Microsoft Windows Server 2008, Microsoft Windows 7 |
| Kritičnost: | 6.9 |
| Problem: | pogreška u programskoj komponenti |
| Iskorištavanje: | udaljeno |
| Posljedica: | proizvoljno izvršavanje programskog koda |
| Rješenje: | programska zakrpa proizvođača |
| CVE: | CVE-2011-1271 |
| Izvorni ID preporuke: | MS11-044 |
| Izvor: | Microsoft |
| Problem: | |
| Spomenuti nedostatak posljedica je načina na koji JIT (eng. Just-In-Time) kompajler provjerava određene vrijednosti unutar korištenih objekata. |
|
| Posljedica: | |
| Udaljeni, zlonamjerni korisnici mogu iskoristiti nedostatak za izvršavanje proizvoljnog programskog koda, navođenjem korisnika na otvaranje posebno oblikovane web stranice. |
|
| Rješenje: | |
| Svim se korisnicima savjetuje primjena objavljene nadogradnje kako bi ispravili ranjivost. |
|
Izvorni tekst preporuke
Microsoft Security Bulletin MS11-044 - Critical
Vulnerability in .NET Framework Could Allow Remote Code Execution (2538814)
Published: June 14, 2011
Version: 1.0
General Information
Executive Summary
This security update resolves a publicly disclosed vulnerability in Microsoft .NET Framework. The vulnerability could allow remote code execution on a client system if a user views a specially crafted Web page using a Web browser that can run XAML Browser Applications (XBAPs). Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. The vulnerability could also allow remote code execution on a server system running IIS, if that server allows processing ASP.NET pages and an attacker succeeds in uploading a specially crafted ASP.NET page to that server and then executes the page, as could be the case in a Web hosting scenario. This vulnerability could also be used by Windows .NET applications to bypass Code Access Security (CAS) restrictions.
This security update is rated Critical for all affected releases of Microsoft .NET Framework for Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2. For more information, see the subsection, Affected and Non-Affected Software, in this section.
The security update addresses the vulnerability by correcting the manner in which the JIT compiler within the .NET Framework validates certain values within an object. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.
Recommendation. The majority of customers have automatic updating enabled and will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.
For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update immediately using update management software, or by checking for updates using the Microsoft Update service.
See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.
Known Issues. Microsoft Knowledge Base Article 2538814 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues.
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Affected and Non-Affected Software
The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.
Affected Software
Operating System Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Windows XP
Windows XP Service Pack 3
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518864)
None
None[2]
MS11-028
Windows XP Service Pack 3
Microsoft .NET Framework 3.5
(KB2530095)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518864)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows XP Professional x64 Edition Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518864)
None
None[2]
MS11-028
Windows XP Professional x64 Edition Service Pack 2
Microsoft .NET Framework 3.5
(KB2530095)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518864)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2003
Windows Server 2003 Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518864)
None
None[2]
MS11-028
Windows Server 2003 Service Pack 2
Microsoft .NET Framework 3.5
(KB2530095)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518864)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2003 x64 Edition Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518864)
None
None[2]
MS11-028
Windows Server 2003 x64 Edition Service Pack 2
Microsoft .NET Framework 3.5
(KB2530095)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518864)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2003 with SP2 for Itanium-based Systems
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518864)
None
None[2]
MS11-028
Windows Server 2003 with SP2 for Itanium-based Systems
Microsoft .NET Framework 3.5
(KB2530095)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518864)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Vista
Windows Vista Service Pack 1
Microsoft .NET Framework 2.0 Service Pack 1
(KB2518863)
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518865)
None
None[2]
MS10-060,
MS11-028
Windows Vista Service Pack 1
Microsoft .NET Framework 3.5
(KB2518863)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518865)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Vista Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518866)
None
None[2]
MS11-028
Windows Vista Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518866)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Vista x64 Edition Service Pack 1
Microsoft .NET Framework 2.0 Service Pack 1
(KB2518863)
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518865)
None
None[2]
MS10-060,
MS11-028
Windows Vista x64 Edition Service Pack 1
Microsoft .NET Framework 3.5
(KB2518863)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518865)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Vista x64 Edition Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518866)
None
None[2]
MS11-028
Windows Vista x64 Edition Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518866)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008
Windows Server 2008 for 32-bit Systems
Microsoft .NET Framework 2.0 Service Pack 1**
(KB2518863)
Microsoft .NET Framework 2.0 Service Pack 2**
(KB2518865)
None
None[2]
MS10-060,
MS11-028
Windows Server 2008 for 32-bit Systems
Microsoft .NET Framework 3.5**
(KB2518863)
Microsoft .NET Framework 3.5 Service Pack 1**
(KB2518865)
Microsoft .NET Framework 4.0**[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2**
(KB2518866)
None
None[2]
MS11-028
Windows Server 2008 for 32-bit Systems Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1**
(KB2518866)
Microsoft .NET Framework 4.0**[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 for x64-based Systems
Microsoft .NET Framework 2.0 Service Pack 1**
(KB2518863)
Microsoft .NET Framework 2.0 Service Pack 2**
(KB2518865)
None
None[2]
MS10-060,
MS11-028
Windows Server 2008 for x64-based Systems
Microsoft .NET Framework 3.5**
(KB2518863)
Microsoft .NET Framework 3.5 Service Pack 1**
(KB2518865)
Microsoft .NET Framework 4.0**[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2**
(KB2518866)
None
None[2]
MS11-028
Windows Server 2008 for x64-based Systems Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1**
(KB2518866)
Microsoft .NET Framework 4.0**[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 for Itanium-based Systems
Microsoft .NET Framework 2.0 Service Pack 1
(KB2518863)
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518865)
None
None[2]
MS10-060,
MS11-028
Windows Server 2008 for Itanium-based Systems
Microsoft .NET Framework 3.5
(KB2518863)
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518865)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS10-060,
MS11-028
Windows Server 2008 for Itanium-based Systems Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2
(KB2518866)
None
None[2]
MS11-028
Windows Server 2008 for Itanium-based Systems Service Pack 2
Microsoft .NET Framework 3.5 Service Pack 1
(KB2518866)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows 7
Windows 7 for 32-bit Systems
Microsoft .NET Framework 3.5.1
(KB2518867)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows 7 for 32-bit Systems Service Pack 1
Microsoft .NET Framework 3.5.1
(KB2518869)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows 7 for x64-based Systems
Microsoft .NET Framework 3.5.1
(KB2518867)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows 7 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1
(KB2518869)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 R2
Windows Server 2008 R2 for x64-based Systems
Microsoft .NET Framework 3.5.1*
(KB2518867)
Microsoft .NET Framework 4.0*[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1*
(KB2518869)
Microsoft .NET Framework 4.0*[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 R2 for Itanium-based Systems
Microsoft .NET Framework 3.5.1
(KB2518867)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Microsoft .NET Framework 3.5.1
(KB2518869)
Microsoft .NET Framework 4.0[1]
(KB2518870)
Remote Code Execution
Critical
MS11-028
*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.
**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.
[1].NET Framework 4.0 and .NET Framework 4.0 Client Profile affected. The .NET Framework version 4 redistributable packages are available in two profiles: .NET Framework 4.0 and .NET Framework 4.0 Client Profile. .NET Framework 4.0 Client Profile is a subset of .NET Framework 4.0. The vulnerability addressed in this update affects both .NET Framework 4.0 and .NET Framework 4.0 Client Profile. For more information, see the MSDN article, Installing the .NET Framework.
[2]Severity ratings do not apply to this update because the vulnerability discussed in this bulletin does not affect this software. However, as a defense-in-depth measure to protect against any possible new vectors identified in the future, Microsoft recommends that customers of this software apply this security update.
Non-Affected Software
Operating System
Microsoft .NET Framework 1.1 Service Pack 1
Microsoft .NET Framework 3.0
Microsoft .NET Framework 3.0 Service Pack 1
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Frequently Asked Questions (FAQ) Related to This Security Update
Where are the file information details?
Refer to the reference tables in the Security Update Deployment section for the location of the file information details.
Is this security update related to MS11-039, Vulnerability in .NET Framework and Microsoft Silverlight Could Allow Remote Code Execution?
No. Although both of these updates affect the .NET Framework, the security updates affect different components within the .NET Framework and are not related. These updates may be applied in any order.
Does this update contain any security-related changes to functionality?
In addition to the changes that are listed in the Vulnerability Information section of this bulletin, this security update also deprecates ClickOnce support for the MD2 and MD4 hash. Once the update has been applied, applications signed with an MD2 or MD4 hash will no longer run. For complete details, see Microsoft Knowledge Base Article 2562394.
How do I determine which version of the Microsoft .NET Framework is installed?
You can install and run multiple versions of the .NET Framework on a system, and you can install the versions in any order. There are several ways to determine which versions of the .NET Framework are currently installed. For more information, please see Microsoft Knowledge Base Article 318785.
What is the difference between .NET Framework 4.0 and .NET Framework 4.0 Client Profile?
The .NET Framework version 4 redistributable packages are available in two profiles: .NET Framework 4.0 and .NET Framework 4.0 Client Profile. The .NET Framework 4.0 Client Profile is a subset of the .NET Framework 4.0 profile that is optimized for client applications. It provides functionality for most client applications, including Windows Presentation Foundation (WPF), Windows Forms, Windows Communication Foundation (WCF), and ClickOnce features. This enables faster deployment and a smaller install package for applications that target the .NET Framework 4.0 Client Profile. For more information, see .NET Framework Client Profile.
I have .NET Framework 3.0 Service Pack 2 installed; this version is not listed among the affected software in this bulletin. Do I need to install an update?
This bulletin describes a vulnerability in the .NET Framework 2.0 and the .NET Framework 4.0 feature layers. The .NET Framework 3.0 Service Pack 2 installer chains in the .NET Framework 2.0 Service Pack 2 setup, so installing the former also installs the latter. Therefore, customers who have .NET Framework 3.0 Service Pack 2 installed need to install security updates for .NET Framework 2.0 Service Pack 2.
I have .NET Framework 3.5 Service Pack 1 installed. Do I need to install any additional updates?
This bulletin describes a vulnerability in the .NET Framework 2.0 and the .NET Framework 4.0 feature layers. The .NET Framework 3.5 Service Pack 1 installer chains in both the .NET Framework 2.0 Service Pack 2 setup and the .NET Framework 3.0 Service Pack 2 setup. Therefore, customers who have .NET Framework 3.5 Service Pack 1 installed also need to install security updates for .NET Framework 2.0 Service Pack 2.
I am using an older release of the software discussed in this security bulletin. What should I do?
The affected software listed in this bulletin have been tested to determine which releases are affected. Other releases are past their support life cycle. For more information about the product lifecycle, visit the Microsoft Support Lifecycle Web site.
It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. To determine the support lifecycle for your software release, see Select a Product for Lifecycle Information. For more information about service packs for these software releases, see Lifecycle Supported Service Packs.
Customers who require custom support for older software must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information Web site, select the country in the Contact Information list, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Microsoft Support Lifecycle Policy FAQ.
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Vulnerability Information
Severity Ratings and Vulnerability Identifiers
The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the June bulletin summary. For more information, see Microsoft Exploitability Index.
Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected Software .NET Framework JIT Optimization Vulnerability - CVE-2011-1271 Aggregate Severity Rating
Microsoft .NET Framework 2.0 Service Pack 1
Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista Service Pack 1
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 1 on Windows Vista x64 Edition Service Pack 1
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 1 on Windows Server 2008 for 32-bit Systems**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 1 on Windows Server 2008 for x64-based Systems**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 1 on Windows Server 2008 for Itanium-based Systems
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows XP Service Pack 3
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows XP Professional x64 Edition Service Pack 2
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2003 Service Pack 2
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2003 x64 Edition Service Pack 2
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2003 with SP2 for Itanium-based Systems
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Vista Service Pack 1
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Vista Service Pack 2
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Vista x64 Edition Service Pack 1
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Vista x64 Edition Service Pack 2
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2008 for 32-bit Systems**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2008 for x64-based Systems**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2**
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 when installed on Windows Server 2008 for Itanium-based Systems
None
None[2]
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 with SP2 for Itanium-based Systems
None
None[2]
Microsoft .NET Framework 3.5
Microsoft .NET Framework 3.5 when installed on Windows XP Service Pack 3
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows XP Professional x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2003 Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2003 x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2003 with SP2 for Itanium-based Systems
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Vista Service Pack 1 and Windows Vista Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2008 for 32-bit Systems**
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2008 for x64-based Systems**
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 when installed on Windows Server 2008 for Itanium-based Systems
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows XP Service Pack 3
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows XP Professional x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2003 Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2003 x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2003 with SP2 for Itanium-based Systems
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Vista Service Pack 1 and Windows Vista Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2**
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2**
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5 Service Pack 1 when installed on Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5.1
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1*
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0
Microsoft .NET Framework 4.0 when installed on Windows XP Service Pack 3[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows XP Professional x64 Edition Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2003 Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2003 x64 Edition Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2003 with SP2 for Itanium-based Systems[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Vista Service Pack 1 and Windows Vista Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2**[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2**[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1*[1]
Critical
Remote Code Execution
Critical
Microsoft .NET Framework 4.0 when installed on Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1[1]
Critical
Remote Code Execution
Critical
*Server Core installation affected. This update applies, with the same severity rating, to supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, whether or not installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.
**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.
[1].NET Framework 4.0 and .NET Framework 4.0 Client Profile affected. The .NET Framework version 4 redistributable packages are available in two profiles: .NET Framework 4.0 and .NET Framework 4.0 Client Profile. .NET Framework 4.0 Client Profile is a subset of .NET Framework 4.0. The vulnerability addressed in this update affects both .NET Framework 4.0 and .NET Framework 4.0 Client Profile. For more information, see the MSDN article, Installing the .NET Framework.
[2]Severity ratings do not apply to this update because the vulnerability discussed in this bulletin does not affect this software. However, as a defense-in-depth measure to protect against any possible new vectors identified in the future, Microsoft recommends that customers of this software apply this security update.
Top of sectionTop of section
.NET Framework JIT Optimization Vulnerability - CVE-2011-1271
A remote code execution vulnerability exists in the way that Microsoft .NET Framework validates certain values within an object. An attacker who successfully exploited this vulnerability could take complete control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2011-1271.
Mitigating Factors for .NET Framework JIT Optimization Vulnerability - CVE-2011-1271
Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:
â 
Posljednje sigurnosne preporuke