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CVE-2018-20030

Estado: ModificadaAlta (7.5)—

An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.

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)

Libexif Project — Libexif

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-20030",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "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": "PSIRT-CNA@flexerasoftware.com",
      "affectedData": [
        {
          "vendor": "Flexera Software LLC",
          "product": "libexif",
          "versions": [
            {
              "status": "affected",
              "version": "0.6.21"
            }
          ]
        }
      ]
    }
  ],
  "published": "2019-02-20T17:29:00.820",
  "references": [
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "https://usn.ubuntu.com/4358-1/",
      "source": "PSIRT-CNA@flexerasoftware.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00000.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00017.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/libexif/libexif/commit/6aa11df549114ebda520dde4cdaea2f9357b2c89",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00016.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/05/msg00025.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-28/",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/4358-1/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources."
    },
    {
      "lang": "es",
      "value": "Un error al procesar las etiquetas EXIF_IFD_INTEROPERABILITY y EXIF_IFD_EXIF en libexif 0.6.21 puede ser explotado para agotar los recursos de la CPU disponibles."
    }
  ],
  "lastModified": "2026-06-17T01:52:12.383",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:libexif_project:libexif:0.6.21:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F9CA97AE-0601-4A69-BC8A-AEBAF8CD7EEA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "PSIRT-CNA@flexerasoftware.com"
}