{
  "id": "CVE-2024-56522",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2024-12-27T05:15:08.130",
  "lastModified": "2025-04-17T02:12:05.617",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 un problema en TCPDF antes de 6.8.0. unserializeTCPDFtag usa != (tambi\u00e9n conocido como comparaci\u00f3n flexible) y no usa una funci\u00f3n de tiempo constante para comparar hashes de etiquetas TCPDF."
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "6.8.0",
              "matchCriteriaId": "F63E1050-BC4A-4815-B891-AC4671D79E06"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89",
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0",
      "source": "cve@mitre.org",
      "tags": [
        "Issue Tracking"
      ]
    },
    {
      "url": "https://tcpdf.org",
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.php.net/manual/en/types.comparisons.php",
      "source": "cve@mitre.org",
      "tags": [
        "Not Applicable"
      ]
    }
  ]
}