GSD-2020-19725

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
There is a use-after-free vulnerability in file pdd_simplifier.cpp in Z3 before 4.8.8. It occurs when the solver attempt to simplify the constraints and causes unexpected memory access. It can cause segmentation faults or arbitrary code execution.
Aliases
Aliases
CVE-2020-19725
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{
  "GSD": {
    "alias": "CVE-2020-19725",
    "id": "GSD-2020-19725"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
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      ],
      "details": "There is a use-after-free vulnerability in file pdd_simplifier.cpp in Z3 before 4.8.8. It occurs when the solver attempt to simplify the constraints and causes unexpected memory access. It can cause segmentation faults or arbitrary code execution.",
      "id": "GSD-2020-19725",
      "modified": "2023-12-13T01:22:02.737831Z",
      "schema_version": "1.4.0"
    }
  },
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      "references": {
        "reference_data": [
          {
            "name": "https://github.com/Z3Prover/z3/issues/3363",
            "refsource": "MISC",
            "url": "https://github.com/Z3Prover/z3/issues/3363"
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            }
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        },
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      "impact": {
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            "baseScore": 7.8,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "impactScore": 5.9
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      },
      "lastModifiedDate": "2023-08-25T02:46Z",
      "publishedDate": "2023-08-22T19:16Z"
    }
  }
}



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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

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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.
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.