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CVE-2023-43768

Estado: AnalizadaAlta (7.5)—

An issue was discovered in Couchbase Server 6.6.x through 7.2.0, before 7.1.5 and 7.2.1. Unauthenticated users may cause memcached to run out of memory via large commands.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Couchbase — Couchbase Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-43768",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-43768",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-08-05T14:21:32.740585Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/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": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:couchbase:couchbase_server:6.6.0:*:*:*:*:*:*:*"
          ],
          "vendor": "couchbase",
          "product": "couchbase_server",
          "versions": [
            {
              "status": "affected",
              "version": "6.6.0",
              "lessThan": "7.1.5",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:a:couchbase:couchbase_server:7.2.0:*:*:*:*:*:*:*"
          ],
          "vendor": "couchbase",
          "product": "couchbase_server",
          "versions": [
            {
              "status": "affected",
              "version": "7.2.0",
              "lessThan": "7.2.1",
              "versionType": "custom"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2024-03-27T07:15:48.390",
  "references": [
    {
      "url": "https://docs.couchbase.com/server/current/release-notes/relnotes.html",
      "tags": [
        "Release Notes"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://forums.couchbase.com/tags/security",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.couchbase.com/alerts/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.couchbase.com/downloads",
      "tags": [
        "Product"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://docs.couchbase.com/server/current/release-notes/relnotes.html",
      "tags": [
        "Release Notes"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://forums.couchbase.com/tags/security",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.couchbase.com/alerts/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.couchbase.com/downloads",
      "tags": [
        "Product"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Couchbase Server 6.6.x through 7.2.0, before 7.1.5 and 7.2.1. Unauthenticated users may cause memcached to run out of memory via large commands."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en Couchbase Server 6.6.x hasta 7.2.0, anteriores a 7.1.5 y 7.2.1. Los usuarios no autenticados pueden hacer que Memcached se quede sin memoria mediante comandos grandes."
    }
  ],
  "lastModified": "2026-06-17T06:26:24.363",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B6785960-AEB2-4648-9EC8-47967CE1CCBC",
              "versionEndExcluding": "7.1.5",
              "versionStartIncluding": "6.6.0"
            },
            {
              "criteria": "cpe:2.3:a:couchbase:couchbase_server:7.2.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FBF7BB41-6DE4-45D5-81FE-A3CC055853F1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}