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CVE-2021-30020

Estado: ModificadaMedia (5.5)—

En la función gf_hevc_read_pps_bs_internal en el archivo media_tools/av_parsers.c en GPAC versión 1.0.1 se presenta un bucle, que con el archivo diseñado, pps-)num_tile_columns puede ser mayor que sizeof(pps-=column_width), el cual resulta en un desbordamiento de la pila en el bucle

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 (1)

Gpac — Gpac

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-30020",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.5,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
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  "affected": [
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      "affectedData": [
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          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2021-04-19T20:15:14.550",
  "references": [
    {
      "url": "https://github.com/gpac/gpac/commit/51cdb67ff7c5f1242ac58c5aa603ceaf1793b788",
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the function gf_hevc_read_pps_bs_internal function in media_tools/av_parsers.c in GPAC 1.0.1 there is a loop, which with crafted file, pps->num_tile_columns may be larger than sizeof(pps->column_width), which results in a heap overflow in the loop."
    },
    {
      "lang": "es",
      "value": "En la función gf_hevc_read_pps_bs_internal en el archivo media_tools/av_parsers.c en GPAC versión 1.0.1 se presenta un bucle, que con el archivo diseñado, pps-)num_tile_columns puede ser mayor que sizeof(pps-=column_width), el cual resulta en un desbordamiento de la pila en el bucle"
    }
  ],
  "lastModified": "2026-06-17T03:49:36.757",
  "configurations": [
    {
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  "sourceIdentifier": "cve@mitre.org"
}