CVE-2011-1271 (GCVE-0-2011-1271)

Vulnerability from cvelistv5 – Published: 2011-05-10 19:00 – Updated: 2024-10-17 18:54
VLAI
Summary
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."
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • n/a
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
microsoft .net_framework Affected: 3.5 Gold
Affected: 3.5 SP1
Affected: 3.5.1
Affected: 4.0
    cpe:2.3:a:microsoft:.net_framework:*:*:*:*:*:*:*:*
 Create a notification for this product.
Date Public
2010-01-25 00:00
Show details on NVD website
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      "id": "CVE-2011-1271",
      "lastModified": "2024-11-21T01:25:57.810",
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      "published": "2011-05-10T19:55:02.027",
      "references": "[{\"url\": \"http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/\", \"source\": \"secure@microsoft.com\", \"tags\": [\"Exploit\"]}, {\"url\": \"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044\", \"source\": \"secure@microsoft.com\"}, {\"url\": \"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686\", \"source\": \"secure@microsoft.com\"}, {\"url\": \"http://stackoverflow.com/questions/2135509/bug-only-occurring-when-compile-optimization-enabled/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\"]}, {\"url\": \"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-044\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12686\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "secure@microsoft.com",
      "vulnStatus": "Modified",
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.