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CVE-2026-14454

Full vulnerability record from the local CVENow database.

Description

Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed. Imager mishandled large EXIF IFD entry count values, treating them as negative numbers. This could lead to an attempt to allocate a block nearly the size of the address space, which fails and kills the process. An attacker could craft an image with EXIF data that terminates a worker process.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
9b29abf9-4ab0-4765-b253-1875cd9b441e
Published
2026-07-08 13:16:30.053000
Last modified
2026-10-25 21:10:00.770000
View original CVE JSON
{
  "id": "CVE-2026-14454",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-07-08T13:16:30.053",
  "lastModified": "2026-10-25T21:10:00.770",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Imager versions before 1.033 for Perl treat unsigned EXIF IFD entry counts as signed.\n\nImager mishandled large EXIF IFD entry count values, treating them as negative numbers.  This could lead to an attempt to allocate a block nearly the size of the address space, which fails and kills the process.\n\nAn attacker could craft an image with EXIF data that terminates a worker process."
    },
    {
      "lang": "es",
      "value": "Las versiones de Imager anteriores a la 1.033 para Perl tratan los recuentos de entradas IFD EXIF sin signo como con signo.\n\nImager manejó incorrectamente valores grandes de recuento de entradas IFD EXIF, tratándolos como números negativos. Esto podría llevar a un intento de asignar un bloque casi del tamaño del espacio de direcciones, lo que falla y termina el proceso.\n\nUn atacante podría crear una imagen con datos EXIF que termine un proceso de trabajador."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "TONYC",
          "product": "Imager",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Imager",
          "programFiles": [
            "imexif.c"
          ],
          "programRoutines": [
            {
              "name": "tiff_load_ifd"
            }
          ],
          "repo": "https://github.com/tonycoz/imager",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.033",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "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:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-09T13:50:57.514385Z",
          "id": "CVE-2026-14454",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-196"
        },
        {
          "lang": "en",
          "value": "CWE-789"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:tonycoz:imager:*:*:*:*:*:perl:*:*",
              "versionEndExcluding": "1.033",
              "matchCriteriaId": "7A93C7AC-6CF1-4A7F-A3CC-F4EA72208710"
            }
          ]
        }
      ]
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  ],
  "references": [
    {
      "url": "https://github.com/tonycoz/imager/commit/06f01a5d0fd591259aeba589370d6888384a6b6d.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://metacpan.org/release/TONYC/Imager-1.033/changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/08/6",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ]
    }
  ]
}