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CVE-2022-25326 (GCVE-0-2022-25326)

Vulnerability from cvelistv5 – Published: 2022-02-25 11:00 – Updated: 2025-04-21 13:56
VLAI
Title
Denial of Service in fscrypt
Summary
fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-21 13:36 UTC
CWE
  • CWE-400 - Uncontrolled Resource Consumption
References
URL Tags
https://github.com/google/fscrypt/pull/346 x_refsource_MISC
Impacted products
Vendor Product Version CPE status
Google LLC fscrypt Affected: unspecified , ≤ 0.3.2 (custom)
guessed Create a notification for this product.
Date Public
2022-02-16 00:00
Show details on NVD website

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              "DATE_PUBLIC": "2022-02-16T11:00:00.000Z",
              "ID": "CVE-2022-25326",
              "STATE": "PUBLIC",
              "TITLE": "Denial of Service in fscrypt"
            },
            "affects": {
              "vendor": {
                "vendor_data": [
                  {
                    "product": {
                      "product_data": [
                        {
                          "product_name": "fscrypt",
                          "version": {
                            "version_data": [
                              {
                                "version_affected": "\u003c=",
                                "version_value": "0.3.2"
                              }
                            ]
                          }
                        }
                      ]
                    },
                    "vendor_name": "Google LLC"
                  }
                ]
              }
            },
            "credit": [
              {
                "lang": "eng",
                "value": "Matthias Gerstner of SUSE"
              }
            ],
            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt 0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable."
                }
              ]
            },
            "generator": {
              "engine": "Vulnogram 0.0.9"
            },
            "impact": {
              "cvss": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              }
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "CWE-400 Uncontrolled Resource Consumption"
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "https://github.com/google/fscrypt/pull/346",
                  "refsource": "MISC",
                  "url": "https://github.com/google/fscrypt/pull/346"
                }
              ]
            },
            "source": {
              "discovery": "EXTERNAL"
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
        "assignerShortName": "Google",
        "cveId": "CVE-2022-25326",
        "datePublished": "2022-02-25T11:00:13.023Z",
        "dateReserved": "2022-02-18T00:00:00.000Z",
        "dateUpdated": "2025-04-21T13:56:31.289Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.


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