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CVE-2021-45972

Status: ModifiedHigh (7.1)—

The giftrans function in giftrans 1.12.2 contains a stack-based buffer overflow because a value inside the input file determines the amount of data to write. This allows an attacker to overwrite up to 250 bytes outside of the allocated buffer with arbitrary data.

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 (2)

Debian — Debian LinuxGiftrans Project — Giftrans

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-45972",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
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          "baseScore": 5.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
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          "baseSeverity": "HIGH",
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  "affected": [
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  "published": "2022-01-01T21:15:07.730",
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-1284"
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  ],
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      "lang": "en",
      "value": "The giftrans function in giftrans 1.12.2 contains a stack-based buffer overflow because a value inside the input file determines the amount of data to write. This allows an attacker to overwrite up to 250 bytes outside of the allocated buffer with arbitrary data."
    },
    {
      "lang": "es",
      "value": "La función giftrans en giftrans versión 1.12.2, contiene un desbordamiento de búfer en la región stack de la memoria porque un valor dentro del archivo de entrada determina la cantidad de datos a escribir. Esto permite a un atacante sobrescribir hasta 250 bytes fuera del buffer asignado con datos arbitrarios.\n"
    }
  ],
  "lastModified": "2026-06-17T04:14:20.850",
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