GSD-2019-12817

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2019-12817",
    "description": "arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another\u0027s virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.",
    "id": "GSD-2019-12817",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-12817.html",
      "https://www.debian.org/security/2019/dsa-4495",
      "https://access.redhat.com/errata/RHSA-2019:2703",
      "https://ubuntu.com/security/CVE-2019-12817",
      "https://advisories.mageia.org/CVE-2019-12817.html",
      "https://linux.oracle.com/cve/CVE-2019-12817.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2019-12817",
      "modified": "2023-12-13T01:23:43.854866Z",
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    }
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.9,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.4,
          "impactScore": 10.0,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.0,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2022-04-18T17:17Z",
      "publishedDate": "2019-06-25T12:15Z"
    }
  }
}



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