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CVE-2018-8022

Status: ModifiedHigh (7.5)—

A carefully crafted invalid TLS handshake can cause Apache Traffic Server (ATS) to segfault. This affects version 6.2.2. To resolve this issue users running 6.2.2 should upgrade to 6.2.3 or later versions.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Apache — Traffic Server

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-8022",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@apache.org",
      "affectedData": [
        {
          "vendor": "Apache Software Foundation",
          "product": "Apache Traffic Server",
          "versions": [
            {
              "status": "affected",
              "version": "6.2.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-08-29T13:29:02.107",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/105183",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://github.com/apache/trafficserver/pull/2147",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "security@apache.org"
    },
    {
      "url": "https://lists.apache.org/thread.html/ce404d2fe16cc59085ece5a6236ccd1549def471a2a9508198d966b1%40%3Cusers.trafficserver.apache.org%3E",
      "source": "security@apache.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/105183",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/apache/trafficserver/pull/2147",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.apache.org/thread.html/ce404d2fe16cc59085ece5a6236ccd1549def471a2a9508198d966b1%40%3Cusers.trafficserver.apache.org%3E",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A carefully crafted invalid TLS handshake can cause Apache Traffic Server (ATS) to segfault. This affects version 6.2.2. To resolve this issue users running 6.2.2 should upgrade to 6.2.3 or later versions."
    },
    {
      "lang": "es",
      "value": "Una negociación TLS inválida cuidadosamente manipulada puede provocar un segfault en Apache Traffic Server (ATS). Esto afecta a la versión 6.2.2. Para resolver este problema, los usuarios que ejecuten la versión 6.2.2 deberían actualizar a la versión 6.2.3 o siguientes."
    }
  ],
  "lastModified": "2026-06-17T02:04:06.747",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "72C208E2-310B-4880-B974-1D5AF04E3990",
              "versionEndIncluding": "6.2.2",
              "versionStartIncluding": "6.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "security@apache.org"
}