gsd-2021-35939
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Aliases
Aliases
CVE-2021-35939


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-35939",
    "description": "It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
    "id": "GSD-2021-35939",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-35939.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-35939"
      ],
      "details": "It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
      "id": "GSD-2021-35939",
      "modified": "2023-12-13T01:23:28.608795Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2021-35939",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "RPM",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Fixed in RPM-v4.18"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-59 - Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://rpm.org/wiki/Releases/4.18.0",
            "refsource": "MISC",
            "url": "https://rpm.org/wiki/Releases/4.18.0"
          },
          {
            "name": "https://github.com/rpm-software-management/rpm/pull/1919",
            "refsource": "MISC",
            "url": "https://github.com/rpm-software-management/rpm/pull/1919"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1964129",
            "refsource": "MISC",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964129"
          },
          {
            "name": "https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556",
            "refsource": "MISC",
            "url": "https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556"
          },
          {
            "name": "https://access.redhat.com/security/cve/CVE-2021-35939",
            "refsource": "MISC",
            "url": "https://access.redhat.com/security/cve/CVE-2021-35939"
          },
          {
            "name": "GLSA-202210-22",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202210-22"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "4.18",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2021-35939"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-59"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/rpm-software-management/rpm/pull/1919",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/rpm-software-management/rpm/pull/1919"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1964129",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1964129"
            },
            {
              "name": "https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556"
            },
            {
              "name": "https://access.redhat.com/security/cve/CVE-2021-35939",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2021-35939"
            },
            {
              "name": "https://rpm.org/wiki/Releases/4.18.0",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Vendor Advisory"
              ],
              "url": "https://rpm.org/wiki/Releases/4.18.0"
            },
            {
              "name": "GLSA-202210-22",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202210-22"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2023-02-04T01:16Z",
      "publishedDate": "2022-08-26T16:15Z"
    }
  }
}


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