gsd-2018-16862
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.
Aliases
Aliases



{
  "GSD": {
    "alias": "CVE-2018-16862",
    "description": "A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.",
    "id": "GSD-2018-16862",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-16862.html",
      "https://ubuntu.com/security/CVE-2018-16862",
      "https://advisories.mageia.org/CVE-2018-16862.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2018-16862.html",
      "https://linux.oracle.com/cve/CVE-2018-16862.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-16862"
      ],
      "details": "A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one.",
      "id": "GSD-2018-16862",
      "modified": "2023-12-13T01:22:26.341454Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2018-16862",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "kernel:",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "[UNKNOWN]"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
            "version": "3.0"
          }
        ]
      },
      "problemtype": {
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                "cweId": "CWE-200",
                "lang": "eng",
                "value": "CWE-200"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
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            "name": "https://usn.ubuntu.com/3879-1/",
            "refsource": "MISC",
            "url": "https://usn.ubuntu.com/3879-1/"
          },
          {
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            "url": "https://usn.ubuntu.com/3879-2/"
          },
          {
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            "refsource": "MISC",
            "url": "http://www.securityfocus.com/bid/106009"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
          },
          {
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          },
          {
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            "url": "https://lore.kernel.org/patchwork/patch/1011367/"
          },
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            "url": "https://seclists.org/oss-sec/2018/q4/169"
          },
          {
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          },
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            "refsource": "MISC",
            "url": "https://usn.ubuntu.com/4118-1/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.14",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ID": "CVE-2018-16862"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A security flaw was found in the Linux kernel in a way that the cleancache subsystem clears an inode after the final file truncation (removal). The new file created with the same inode may contain leftover pages from cleancache and the old file data instead of the new one."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-200"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "[oss-security] 20181123 CVE-2018-16862: Linux kernel: cleancache: deleted files infoleak",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://seclists.org/oss-sec/2018/q4/169"
            },
            {
              "name": "https://lore.kernel.org/patchwork/patch/1011367/",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://lore.kernel.org/patchwork/patch/1011367/"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16862"
            },
            {
              "name": "106009",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
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              "url": "http://www.securityfocus.com/bid/106009"
            },
            {
              "name": "USN-3879-2",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/3879-2/"
            },
            {
              "name": "USN-3879-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://usn.ubuntu.com/3879-1/"
            },
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              "refsource": "MLIST",
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                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html"
            },
            {
              "name": "[debian-lts-announce] 20190327 [SECURITY] [DLA 1731-1] linux security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html"
            },
            {
              "name": "[debian-lts-announce] 20190401 [SECURITY] [DLA 1731-2] linux regression update",
              "refsource": "MLIST",
              "tags": [],
              "url": "https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html"
            },
            {
              "name": "USN-4094-1",
              "refsource": "UBUNTU",
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              "url": "https://usn.ubuntu.com/4094-1/"
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              "name": "USN-4118-1",
              "refsource": "UBUNTU",
              "tags": [],
              "url": "https://usn.ubuntu.com/4118-1/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-04-01T21:29Z",
      "publishedDate": "2018-11-26T19:29Z"
    }
  }
}


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