FKIE_CVE-2021-28678

Vulnerability from fkie_nvd - Published: 2021-06-02 16:15 - Updated: 2026-06-17 03:46
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Summary
An issue was discovered in Pillow before 8.2.0. For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data.
References
cve@mitre.orghttps://github.com/python-pillow/Pillow/pull/5377Patch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
cve@mitre.orghttps://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dosRelease Notes, Vendor Advisory
cve@mitre.orghttps://security.gentoo.org/glsa/202107-33Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/python-pillow/Pillow/pull/5377Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
af854a3a-2127-422b-91ae-364da2661108https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28678-fix-blp-dosRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202107-33Third Party Advisory
Impacted products
Vendor Product Version
python pillow *
fedoraproject fedora 33
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "67AB0921-A1F5-4B3B-BED5-FC8B1DAF30C6",
              "versionEndExcluding": "8.2.0",
              "vulnerable": true
            }
          ],
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          "operator": "OR"
        }
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            }
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Pillow before 8.2.0. For BLP data, BlpImagePlugin did not properly check that reads (after jumping to file offsets) returned data. This could lead to a DoS where the decoder could be run a large number of times on empty data."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en Pillow versiones anteriores a 8.2.0,. En el caso de los datos BLP, la funci\u00f3n BlpImagePlugin no comprobaba apropiadamente que las lecturas (despu\u00e9s de saltar a los offsets de los archivos) devolv\u00edan datos. Esto pod\u00eda conllevar a un DoS en el que el decodificador pod\u00eda ser ejecutado un gran n\u00famero de veces con datos vac\u00edos"
    }
  ],
  "id": "CVE-2021-28678",
  "lastModified": "2026-06-17T03:46:46.847",
  "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"
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        "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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          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
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        "source": "nvd@nist.gov",
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  "published": "2021-06-02T16:15:08.860",
  "references": [
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      "source": "cve@mitre.org",
      "tags": [
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    },
    {
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    },
    {
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    },
    {
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-345"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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