GSD-2020-29369

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2020-29369",
    "description": "An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.",
    "id": "GSD-2020-29369",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-29369.html",
      "https://ubuntu.com/security/CVE-2020-29369"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-29369"
      ],
      "details": "An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.",
      "id": "GSD-2020-29369",
      "modified": "2023-12-13T01:22:11.660229Z",
      "schema_version": "1.4.0"
    }
  },
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                    "version": {
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          }
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      "references": {
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          {
            "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11",
            "refsource": "MISC",
            "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11"
          },
          {
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          },
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            "refsource": "MISC",
            "url": "https://bugs.chromium.org/p/project-zero/issues/detail?id=2056"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20210115-0001/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20210115-0001/"
          },
          {
            "name": "[oss-security] 20210210 Re: CVE-2021-20200: Linux kernel: close race between munmap() and expand_upwards()/downwards()",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/02/10/6"
          },
          {
            "name": "[oss-security] 20210219 Re: CVE-2021-20200: Linux kernel: close race between munmap() and expand_upwards()/downwards()",
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            "url": "http://www.openwall.com/lists/oss-security/2021/02/19/8"
          }
        ]
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    },
    "nvd.nist.gov": {
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            }
          ]
        },
        "problemtype": {
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        "references": {
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              "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11",
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              "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.11"
            },
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              "name": "https://bugs.chromium.org/p/project-zero/issues/detail?id=2056",
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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": "2023-07-28T19:38Z",
      "publishedDate": "2020-11-28T07:15Z"
    }
  }
}



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