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CVE-2021-45972

Estado: ModificadaAlta (7.1)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Debian — Debian LinuxGiftrans Project — Giftrans

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-45972",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "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",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
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    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
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        "impactScore": 5.2,
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  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
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              "status": "affected",
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  "published": "2022-01-01T21:15:07.730",
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      "url": "http://web.archive.org/web/20150801185019/",
      "tags": [
        "Broken Link"
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      "source": "cve@mitre.org"
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        "Mailing List",
        "Third Party Advisory"
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      "source": "cve@mitre.org"
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      "url": "https://www.abdn.ac.uk/tools/ibmpc/giftrans/index.hti",
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      "source": "cve@mitre.org"
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      "url": "https://www.abdn.ac.uk/tools/ibmpc/giftrans/index.hti",
      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "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",
  "configurations": [
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