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CVE-2018-11490

Status: ModifiedHigh (8.8)—

The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (4)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2018-11490",
  "cveTags": [],
  "metrics": {
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          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
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        "impactScore": 6.4,
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          "integrityImpact": "HIGH",
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  "published": "2018-05-26T18:29:00.277",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-129"
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        {
          "lang": "en",
          "value": "CWE-787"
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      "value": "The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain \"Private->RunningCode - 2\" array index is not checked. This will lead to a denial of service or possibly unspecified other impact."
    },
    {
      "lang": "es",
      "value": "La función DGifDecompressLine en dgif_lib.c en GIFLIB (probablemente en la versión 3.0.x), tal y como se distribuyó posteriormente en cgif.c en sam2p 0.49.4, tiene un desbordamiento de búfer basado en memoria dinámica (heap) debido a que no se comprueba cierto índice de arrays \"Private->RunningCode - 2\". Esto podría conducir a una denegación de servicio (DoS) o a otro tipo de impacto sin especificar."
    }
  ],
  "lastModified": "2026-06-17T01:36:02.457",
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