Vulnerability Details CVE-2011-1271
The JIT compiler in Microsoft .NET Framework 3.5 Gold and SP1, 3.5.1, and 4.0, when IsJITOptimizerDisabled is false, does not properly handle expressions related to null strings, which allows context-dependent attackers to bypass intended access restrictions, and consequently execute arbitrary code, in opportunistic circumstances by leveraging a crafted application, as demonstrated by (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka ".NET Framework JIT Optimization Vulnerability."
Exploit prediction scoring system (EPSS) score
EPSS Score 0.037
EPSS Ranking 87.4%
CVSS Severity
CVSS v3 Score 7.7
CVSS v2 Score 5.1
References
- http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686
- http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686
Products affected by CVE-2011-1271
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cpe:2.3:a:microsoft:.net_framework:2.0
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cpe:2.3:a:microsoft:.net_framework:3.5
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cpe:2.3:a:microsoft:.net_framework:3.5.1
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cpe:2.3:a:microsoft:.net_framework:4.0
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cpe:2.3:o:microsoft:windows_2003_server:-
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cpe:2.3:o:microsoft:windows_7:-
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cpe:2.3:o:microsoft:windows_server_2003:-
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cpe:2.3:o:microsoft:windows_server_2003:r2
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cpe:2.3:o:microsoft:windows_server_2008:-
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cpe:2.3:o:microsoft:windows_server_2008:r2
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cpe:2.3:o:microsoft:windows_vista:-
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cpe:2.3:o:microsoft:windows_xp:-
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cpe:2.3:o:microsoft:windows_xp:unknown