gsd-2020-27825
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.
Aliases
Aliases
CVE-2020-27825


To clipboard 

{
  "GSD": {
    "alias": "CVE-2020-27825",
    "description": "A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat.",
    "id": "GSD-2020-27825",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-27825.html",
      "https://www.debian.org/security/2021/dsa-4843",
      "https://advisories.mageia.org/CVE-2020-27825.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2020-27825.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2020-27825",
      "modified": "2023-12-13T01:22:11.461314Z",
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          "cvssV2": {
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            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 5.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:M/Au:N/C:P/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 7.8,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "availabilityImpact": "HIGH",
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "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:H",
            "version": "3.1"
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          "exploitabilityScore": 0.5,
          "impactScore": 5.2
        }
      },
      "lastModifiedDate": "2022-09-02T15:34Z",
      "publishedDate": "2020-12-11T19:15Z"
    }
  }
}


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