CVE-2026-13705

{
  "id": "CVE-2026-13705",
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "published": "2026-07-06T13:16:32.447",
  "lastModified": "2026-10-25T20:10:00.147",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Imager versions before 1.032 for Perl have a heap out-of-bounds read in the bundled Imager::File::SGI reader via a 16-bit RLE literal run in read_rgb_16_rle.\n\nread_rgb_16_rle guards each literal run with if (count > data_left), but count is a pixel count while every 16-bit sample consumes two bytes. The copy loop reads inp[0] * 256 + inp[1] and advances two bytes per pixel, so a run with data_left / 2 < count <= data_left passes the guard yet consumes 2 * count bytes and reads past the end of the buffer. The 8-bit path is unaffected because there one pixel is one byte.\n\nReading a crafted SGI image through Imager->read triggers the over-read before the parser rejects the malformed image, which can crash the process."
    },
    {
      "lang": "es",
      "value": "Las versiones de Imager anteriores a la 1.032 para Perl tienen una lectura fuera de límites del montón en el lector Imager::File::SGI incluido, a través de una secuencia literal RLE de 16 bits en read_rgb_16_rle.\n\nread_rgb_16_rle protege cada secuencia literal con if (count > data_left), pero count es un recuento de píxeles mientras que cada muestra de 16 bits consume dos bytes. El bucle de copia lee inp[0] * 256 + inp[1] y avanza dos bytes por píxel, por lo que una secuencia con data_left / 2 < count <= data_left pasa la protección pero consume 2 * count bytes y lee más allá del final del búfer. La ruta de 8 bits no se ve afectada porque allí un píxel es un byte.\n\nLa lectura de una imagen SGI manipulada a través de Imager  ->  read desencadena la sobrerelectura antes de que el analizador rechace la imagen malformada, lo que puede bloquear el proceso."
    }
  ],
  "affected": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "affectedData": [
        {
          "vendor": "TONYC",
          "product": "Imager",
          "defaultStatus": "unaffected",
          "collectionURL": "https://cpan.org/modules",
          "packageName": "Imager",
          "programFiles": [
            "SGI/imsgi.c"
          ],
          "programRoutines": [
            {
              "name": "read_rgb_16_rle"
            }
          ],
          "repo": "https://github.com/tonycoz/imager",
          "versions": [
            {
              "version": "0",
              "lessThan": "1.032",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-07-06T19:24:34.960922Z",
          "id": "CVE-2026-13705",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/tonycoz/imager/commit/f28de02770dfc26ffbdc32048970ed84babbf730.patch",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "https://metacpan.org/release/TONYC/Imager-1.032/source/Changes",
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    },
    {
      "url": "http://www.openwall.com/lists/oss-security/2026/07/06/3",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ]
}