GSD-2018-1092

Vulnerability from gsd - Updated: 2023-12-13 01:22
Details
The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2018-1092",
    "description": "The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.",
    "id": "GSD-2018-1092",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-1092.html",
      "https://www.debian.org/security/2018/dsa-4188",
      "https://www.debian.org/security/2018/dsa-4187",
      "https://access.redhat.com/errata/RHSA-2018:3096",
      "https://access.redhat.com/errata/RHSA-2018:3083",
      "https://access.redhat.com/errata/RHSA-2018:2948",
      "https://ubuntu.com/security/CVE-2018-1092",
      "https://advisories.mageia.org/CVE-2018-1092.html",
      "https://linux.oracle.com/cve/CVE-2018-1092.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-1092"
      ],
      "details": "The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.",
      "id": "GSD-2018-1092",
      "modified": "2023-12-13T01:22:37.190770Z",
      "schema_version": "1.4.0"
    }
  },
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                        }
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          }
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              }
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                "vulnerable": true
              }
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            }
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      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-12T23:32Z",
      "publishedDate": "2018-04-02T03:29Z"
    }
  }
}



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