{ "id": "CVE-2011-1271", "sourceIdentifier": "secure@microsoft.com", "published": "2011-05-10T19:55:02.027", "lastModified": "2023-12-07T18:38:56.693", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "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.\"" }, { "lang": "es", "value": "El Compilador JIT en Microsoft .NET Framework versiones 3.5 Gold y SP1, 3.5.1 y 4.0, cuando IsJITOptimizerDisabled es falso, no controla apropiadamente las expresiones relacionadas con cadenas NULL, lo que permite a los atacantes dependiendo del contexto omitir las restricciones de acceso previstas, y, en consecuencia, ejecutar c\u00f3digo arbitrario, en circunstancias oportunistas mediante la explotaci\u00f3n a una aplicaci\u00f3n creada, como es demostrado por (1) una aplicaci\u00f3n de navegador XAML creada (tambi\u00e9n conocida como XBAP), (2) una aplicaci\u00f3n ASP.NET creada, o (3) una aplicaci\u00f3n de .NET Framework creada, tambi\u00e9n se conoce como \"NET Framework JIT Optimization Vulnerability\"." } ], "metrics": { "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "HIGH", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 5.1 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 4.9, "impactScore": 6.4, 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