FKIE_CVE-2021-45385

Vulnerability from fkie_nvd - Published: 2022-02-11 16:15 - Updated: 2026-06-17 04:13
Severity
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
A Null Pointer Dereference vulnerability exits in ffjpeg d5cfd49 (2021-12-06) in bmp_load(). When the size information in metadata of the bmp is out of range, it returns without assign memory buffer to `pb->pdata` and did not exit the program. So the program crashes when it tries to access the pb->data, in jfif_encode() at jfif.c:763. This is due to the incomplete patch for CVE-2020-13438.
References
cve@mitre.orghttps://github.com/rockcarry/ffjpeg/issues/47Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://github.com/rockcarry/ffjpeg/pull/48Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/rockcarry/ffjpeg/issues/47Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/rockcarry/ffjpeg/pull/48Issue Tracking, Patch, Third Party Advisory
Impacted products
Vendor Product Version
rockcarry ffjpeg 2021-12-06
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rockcarry:ffjpeg:2021-12-06:*:*:*:*:*:*:*",
              "matchCriteriaId": "A3438805-CAF0-41AE-BC2A-3A11A252D8E6",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A Null Pointer Dereference vulnerability exits in ffjpeg d5cfd49 (2021-12-06) in bmp_load(). When the size information in metadata of the bmp is out of range, it returns without assign memory buffer to `pb-\u003epdata` and did not exit the program. So the program crashes when it tries to access the pb-\u003edata, in jfif_encode() at jfif.c:763. This is due to the incomplete patch for CVE-2020-13438."
    },
    {
      "lang": "es",
      "value": "Se presenta una vulnerabilidad de desreferencia de puntero Null en ffjpeg versi\u00f3n d5cfd49 (06-12-2021) en la funci\u00f3n bmp_load(). Cuando la informaci\u00f3n del tama\u00f1o en los metadatos del bmp est\u00e1 fuera de rango, devuelve sin asignar memoria intermedia a \"pb-)pdata\" y no sale del programa. As\u00ed que el programa es bloqueado cuando intenta acceder a pb-)data, en jfif_encode() en jfif.c:763. Esto es debido al parche incompleto para CVE-2020-13438"
    }
  ],
  "id": "CVE-2021-45385",
  "lastModified": "2026-06-17T04:13:19.277",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
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    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2022-02-11T16:15:08.793",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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        "Issue Tracking",
        "Third Party Advisory"
      ],
      "url": "https://github.com/rockcarry/ffjpeg/issues/47"
    },
    {
      "source": "cve@mitre.org",
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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