gsd-2020-25656
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2020-25656",
    "description": "A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.",
    "id": "GSD-2020-25656",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-25656.html",
      "https://access.redhat.com/errata/RHSA-2021:0857",
      "https://access.redhat.com/errata/RHSA-2021:0856",
      "https://ubuntu.com/security/CVE-2020-25656",
      "https://advisories.mageia.org/CVE-2020-25656.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-25656.html",
      "https://linux.oracle.com/cve/CVE-2020-25656.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2020-25656",
      "modified": "2023-12-13T01:21:57.056539Z",
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          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 1.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "baseScore": 4.1,
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 0.5,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-10-25T17:03Z",
      "publishedDate": "2020-12-02T01:15Z"
    }
  }
}


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