fkie_cve-2018-9860
Vulnerability from fkie_nvd
Published
2018-04-12 05:29
Modified
2024-11-21 04:15
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will subsequently fail and the connection will be closed. This could be used for denial of service. No information leak occurs.
References
cve@mitre.orghttps://botan.randombit.net/security.htmlVendor Advisory
cve@mitre.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434Issue Tracking
af854a3a-2127-422b-91ae-364da2661108https://botan.randombit.net/security.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434Issue Tracking
Impacted products
Vendor Product Version
botan_project botan *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "760DA2BA-46D0-459F-B132-9F184A66EB9B",
              "versionEndExcluding": "2.6.0",
              "versionStartIncluding": "1.11.32",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will subsequently fail and the connection will be closed. This could be used for denial of service. No information leak occurs."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en Botan desde la versi\u00f3n 1.11.32 hasta las versiones 2.x anteriores a la 2.6.0. Un error por un paso cuando se procesa texto cifrado TLS-CBC mal formado podr\u00eda provocar que la parte receptora incluya en el c\u00e1lculo de la HMAC exactamente 64K bytes de datos junto con el b\u00fafer del registro. Esto tambi\u00e9n se conoce como sobrelectura. La comparaci\u00f3n de MAC fallar\u00eda en consecuencia y la conexi\u00f3n se cerrar\u00eda. Esto se podr\u00eda utilizar para realizar una denegaci\u00f3n de servicio (DoS). No ocurre ninguna fuga de informaci\u00f3n."
    }
  ],
  "id": "CVE-2018-9860",
  "lastModified": "2024-11-21T04:15:49.560",
  "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
      }
    ],
    "cvssMetricV30": [
      {
        "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": "2018-04-12T05:29:00.220",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://botan.randombit.net/security.html"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://botan.randombit.net/security.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7434"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-193"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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