medium
4.3
CWE
200
Advisory Published
Updated

CVE-2011-1978: Infoleak

First published: Wed Aug 10 2011(Updated: )

Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Socket Restriction Bypass Vulnerability."

Credit: secure@microsoft.com

Affected SoftwareAffected VersionHow to fix
All of
Microsoft .NET Framework 4=4.0
Any of
Microsoft Windows Server 2003=sp2
Microsoft Windows 7
Microsoft Windows 7=sp1
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=r2
Microsoft Windows Server=r2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
All of
Microsoft .NET Framework 4=3.5.1
Any of
Microsoft Windows 7
Microsoft Windows Server=r2
Microsoft Windows Server=r2
All of
Microsoft .NET Framework 4=2.0-sp2
Any of
Microsoft Windows Server 2003=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
Microsoft .NET Framework 4=4.0
Microsoft Windows Server 2003=sp2
Microsoft Windows 7
Microsoft Windows 7=sp1
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=sp2
Microsoft Windows Server=r2
Microsoft Windows Server=r2
Microsoft Windows Vista=sp2
Microsoft Windows Vista=sp2
Microsoft Windows XP=sp3
Microsoft Windows XP=sp2
Microsoft .NET Framework 4=3.5.1
Microsoft .NET Framework 4=2.0-sp2
Microsoft Windows Server

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2011-1978?

    CVE-2011-1978 has a severity rating of 'Important' as it allows remote attackers to obtain sensitive information.

  • How do I fix CVE-2011-1978?

    To fix CVE-2011-1978, you should apply the appropriate Microsoft updates to patch the vulnerability.

  • Which software is affected by CVE-2011-1978?

    CVE-2011-1978 affects Microsoft .NET Framework versions 2.0, 3.5.1, and 4.0.

  • Can CVE-2011-1978 be exploited through XAML browser applications?

    Yes, CVE-2011-1978 can be exploited via crafted XAML browser applications (XBAPs) to execute arbitrary network traffic.

  • Is my application vulnerable if it uses .NET Framework 4.0?

    If your application uses .NET Framework 4.0 without the latest updates, it is vulnerable to CVE-2011-1978.

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