MSRC_CVE-2019-19391

Vulnerability from csaf_microsoft - Published: 2019-11-02 00:00 - Updated: 2024-06-30 07:00
Summary
In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and > options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective

Notes

Additional Resources
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
Disclaimer
The information provided in the Microsoft Knowledge Base is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
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        "summary": "CVE-2019-19391 In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective - VEX",
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    "title": "In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective",
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        "name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
      },
      "notes": [
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          "summary": "CVE-2019-19391 In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective - VEX",
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "environmentalsScore": 0.0,
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "temporalScore": 9.1,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
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            "16817-2",
            "17084-3"
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      ],
      "title": "In LuaJIT through 2.0.5 as used in Moonjit before 2.1.2 and other products debug.getinfo has a type confusion issue that leads to arbitrary memory write or read operations because certain cases involving valid stack levels and \u003e options are mishandled. NOTE: The LuaJIT project owner states that the debug libary is unsafe by definition and that this is not a vulnerability. When LuaJIT was originally developed the expectation was that the entire debug library had no security guarantees and thus it made no sense to assign CVEs. However not all users of later LuaJIT derivatives share this perspective"
    }
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}


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Sightings

Author Source Type Date

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.