CVE-2011-1271

CVSS 7.7 HIGHEPSS 20.1%CWE-476

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."

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

Affected products

n/a · n/a

public PoCs found — 1

exploitdbwww.exploit-db.com/exploits/35740unverified

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References

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/