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CVE-2022-4121

Estado: ModificadaMedia (5.5)—

In libetpan a null pointer dereference in mailimap_mailbox_data_status_free in low-level/imap/mailimap_types.c was found that could lead to a remote denial of service or other potential consequences.

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)

Libetpan Project — Libetpan

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-4121",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2022-4121",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-04-04T17:59:45.603389Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      },
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "patrick@puiterwijk.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "libetpan",
          "versions": [
            {
              "status": "affected",
              "version": "unknown"
            }
          ]
        }
      ]
    }
  ],
  "published": "2023-01-17T18:15:11.583",
  "references": [
    {
      "url": "https://github.com/dinhvh/libetpan/commit/5c9eb6b6ba64c4eb927d7a902317410181aacbba",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "patrick@puiterwijk.org"
    },
    {
      "url": "https://github.com/dinhvh/libetpan/issues/420",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "patrick@puiterwijk.org"
    },
    {
      "url": "https://github.com/dinhvh/libetpan/commit/5c9eb6b6ba64c4eb927d7a902317410181aacbba",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/dinhvh/libetpan/issues/420",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/07/msg00018.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "patrick@puiterwijk.org",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In libetpan a null pointer dereference in mailimap_mailbox_data_status_free in low-level/imap/mailimap_types.c was found that could lead to a remote denial of service or other potential consequences."
    },
    {
      "lang": "es",
      "value": "En libetpan se encontró una desreferencia de puntero nulo en mailimap_mailbox_data_status_free en low-level/imap/mailimap_types.c que podría provocar una denegación remota de servicio u otras posibles consecuencias."
    }
  ],
  "lastModified": "2026-06-17T05:20:00.667",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libetpan_project:libetpan:-:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6A0D1B29-C9D4-41DF-BC27-693F54591519"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "patrick@puiterwijk.org"
}