{
  "id": "CVE-2017-8823",
  "sourceIdentifier": "security@debian.org",
  "published": "2017-12-03T07:29:00.443",
  "lastModified": "2024-11-21T03:34:46.437",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Tor before 0.2.5.16, 0.2.6 through 0.2.8 before 0.2.8.17, 0.2.9 before 0.2.9.14, 0.3.0 before 0.3.0.13, and 0.3.1 before 0.3.1.9, there is a use-after-free in onion service v2 during intro-point expiration because the expiring list is mismanaged in certain error cases, aka TROVE-2017-013."
    },
    {
      "lang": "es",
      "value": "En Tor, en versiones anteriores a la 0.2.5.16; de la versi\u00f3n 0.2.6 hasta la 0.2.8 anterior a la 0.2.8.17: versiones 0.2.9 anteriores a la 0.2.9.14; versiones 0.3.0 anteriores a la 0.3.0.13 y versiones 0.3.1 anteriores a la 0.3.1.9, existe un uso de memoria previamente liberada en el servicio onion v2 durante la expiraci\u00f3n del nodo de entrada, debido a que la lista de expiraci\u00f3n se gestiona de manera incorrecta en ciertos casos de error. Esto tambi\u00e9n se conoce como TROVE-2017-013."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "configurations": [
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          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "0.2.5.16",
              "matchCriteriaId": "067DE048-F786-4E63-98E6-6FD6415DD3A5"
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  ],
  "references": [
    {
      "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516",
      "source": "security@debian.org",
      "tags": [
        "Vendor Advisory"
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    },
    {
      "url": "https://bugs.torproject.org/24313",
      "source": "security@debian.org",
      "tags": [
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      ]
    },
    {
      "url": "https://bugs.torproject.org/24430",
      "source": "security@debian.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.debian.org/security/2017/dsa-4054",
      "source": "security@debian.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
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      "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-0319-03013-02914-02817-02516",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://bugs.torproject.org/24430",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    {
      "url": "https://www.debian.org/security/2017/dsa-4054",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    }
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}