FKIE_CVE-2015-0886

Vulnerability from fkie_nvd - Published: 2015-02-28 02:59 - Updated: 2026-06-17 00:21
Severity
Summary
Integer overflow in the crypt_raw method in the key-stretching implementation in jBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of password hashes via a brute-force attack against hashes associated with the maximum exponent.
References
vultures@jpcert.or.jphttp://jvn.jp/en/jp/JVN77718330/index.htmlThird Party Advisory, Vendor Advisory
vultures@jpcert.or.jphttp://jvndb.jvn.jp/jvndb/JVNDB-2015-000033Third Party Advisory, VDB Entry, Vendor Advisory
vultures@jpcert.or.jphttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.htmlThird Party Advisory
vultures@jpcert.or.jphttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151786.htmlThird Party Advisory
vultures@jpcert.or.jphttp://lists.fedoraproject.org/pipermail/package-announce/2015-March/151797.htmlThird Party Advisory
vultures@jpcert.or.jphttp://www.mindrot.org/projects/jBCrypt/news/rel04.htmlRelease Notes, Vendor Advisory
vultures@jpcert.or.jphttps://bugzilla.mindrot.org/show_bug.cgi?id=2097Issue Tracking, Vendor Advisory
vultures@jpcert.or.jphttps://lists.apache.org/thread.html/rbd23e3ac8113b4da0a025c0e45170b6ec317383a1cf06090c2c717aa%40%3Ccommits.cassandra.apache.org%3E
vultures@jpcert.or.jphttps://lists.apache.org/thread.html/rd5c2256b8dc9935e4bb5e9be90adce58408054bb42523730a40c5548%40%3Ccommits.cassandra.apache.org%3E
vultures@jpcert.or.jphttps://lists.apache.org/thread.html/re330cfe9e5d84e3f7da8ace23ec32f38cb3fbd328bf177badd7ad942%40%3Ccommits.cassandra.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108http://jvn.jp/en/jp/JVN77718330/index.htmlThird Party Advisory, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://jvndb.jvn.jp/jvndb/JVNDB-2015-000033Third Party Advisory, VDB Entry, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151786.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151797.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.mindrot.org/projects/jBCrypt/news/rel04.htmlRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mindrot.org/show_bug.cgi?id=2097Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rbd23e3ac8113b4da0a025c0e45170b6ec317383a1cf06090c2c717aa%40%3Ccommits.cassandra.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rd5c2256b8dc9935e4bb5e9be90adce58408054bb42523730a40c5548%40%3Ccommits.cassandra.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/re330cfe9e5d84e3f7da8ace23ec32f38cb3fbd328bf177badd7ad942%40%3Ccommits.cassandra.apache.org%3E
Impacted products
Vendor Product Version
mindrot jbcrypt *
fedoraproject fedora 20
fedoraproject fedora 21
fedoraproject fedora 22
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "vultures@jpcert.or.jp"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mindrot:jbcrypt:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "61049707-EA5E-4193-B4A4-A60D81F69624",
              "versionEndExcluding": "0.4",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*",
              "matchCriteriaId": "FF47C9F0-D8DA-4B55-89EB-9B2C9383ADB9",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*",
              "matchCriteriaId": "56BDB5A0-0839-4A20-A003-B8CD56F48171",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*",
              "matchCriteriaId": "253C303A-E577-4488-93E6-68A8DD942C38",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Integer overflow in the crypt_raw method in the key-stretching implementation in jBCrypt before 0.4 makes it easier for remote attackers to determine cleartext values of password hashes via a brute-force attack against hashes associated with the maximum exponent."
    },
    {
      "lang": "es",
      "value": "Desbordamiento de enteros en el m\u00e9todo crypt_raw en la implementaci\u00f3n del estiramiento de claves en jBCrypt anterior a 0.4 facilita a atacantes remotos determinar valores en texto claro de hashes de contrase\u00f1as a trav\u00e9s de un ataque de fuerza bruta contra los hashes asociados con el exponente m\u00e1ximo."
    }
  ],
  "id": "CVE-2015-0886",
  "lastModified": "2026-06-17T00:21:05.747",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2015-02-28T02:59:35.987",
  "references": [
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory",
        "Vendor Advisory"
      ],
      "url": "http://jvn.jp/en/jp/JVN77718330/index.html"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
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        "VDB Entry",
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      ],
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    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.html"
    },
    {
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    },
    {
      "source": "vultures@jpcert.or.jp",
      "tags": [
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      "url": "http://www.mindrot.org/projects/jBCrypt/news/rel04.html"
    },
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    },
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    },
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      "url": "https://lists.apache.org/thread.html/rd5c2256b8dc9935e4bb5e9be90adce58408054bb42523730a40c5548%40%3Ccommits.cassandra.apache.org%3E"
    },
    {
      "source": "vultures@jpcert.or.jp",
      "url": "https://lists.apache.org/thread.html/re330cfe9e5d84e3f7da8ace23ec32f38cb3fbd328bf177badd7ad942%40%3Ccommits.cassandra.apache.org%3E"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "Vendor Advisory"
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      "url": "http://jvn.jp/en/jp/JVN77718330/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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        "VDB Entry",
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      "url": "http://jvndb.jvn.jp/jvndb/JVNDB-2015-000033"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151496.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151786.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      ],
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151797.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "Vendor Advisory"
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      "url": "http://www.mindrot.org/projects/jBCrypt/news/rel04.html"
    },
    {
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    }
  ],
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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.

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