FKIE_CVE-2019-8955

Vulnerability from fkie_nvd - Published: 2019-02-21 23:29 - Updated: 2024-11-21 04:50
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html
cve@mitre.orghttp://www.securityfocus.com/bid/107136Third Party Advisory, VDB Entry
cve@mitre.orghttps://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312Vendor Advisory
cve@mitre.orghttps://trac.torproject.org/projects/tor/ticket/29168Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/107136Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://trac.torproject.org/projects/tor/ticket/29168Vendor Advisory
Impacted products
Vendor Product Version
torproject tor *
torproject tor *
torproject tor 0.3.4.0
torproject tor 0.3.4.1
torproject tor 0.3.4.2
torproject tor 0.3.4.3
torproject tor 0.3.4.4
torproject tor 0.3.4.5
torproject tor 0.3.4.6
torproject tor 0.3.4.7
torproject tor 0.3.5.0
torproject tor 0.3.5.1
torproject tor 0.3.5.2
torproject tor 0.3.5.3
torproject tor 0.3.5.4
torproject tor 0.3.5.5
torproject tor 0.3.5.6
torproject tor 0.3.5.7
torproject tor 0.4.0.1
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler."
    },
    {
      "lang": "es",
      "value": "En Tor, en versiones anteriores a la 0.3.3.12, en las 0.3.4.x anteriores a la 0.3.4.11, en las 0.3.5.x anteriores a la 0.3.5.8 y en las 0.4.x anteriores a la 0.4.0.2-alpha, puede ocurrir una denegaci\u00f3n de servicio (DoS) remota contra los clientes Tor, adem\u00e1s de reproducciones mediante el agotamiento de memoria en el programador \"KIST cell\"."
    }
  ],
  "id": "CVE-2019-8955",
  "lastModified": "2024-11-21T04:50:44.113",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2019-02-21T23:29:00.267",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/107136"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://trac.torproject.org/projects/tor/ticket/29168"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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        "VDB Entry"
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      "url": "http://www.securityfocus.com/bid/107136"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://trac.torproject.org/projects/tor/ticket/29168"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.
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Detection rules are retrieved from Rulezet.