GSD-2021-28676

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.
Aliases
Aliases

{
  "GSD": {
    "alias": "CVE-2021-28676",
    "description": "An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.",
    "id": "GSD-2021-28676",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-28676.html",
      "https://access.redhat.com/errata/RHSA-2021:4149",
      "https://ubuntu.com/security/CVE-2021-28676",
      "https://advisories.mageia.org/CVE-2021-28676.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-28676"
      ],
      "details": "An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.",
      "id": "GSD-2021-28676",
      "modified": "2023-12-13T01:23:28.841104Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-28676",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "value": "An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos",
            "refsource": "MISC",
            "url": "https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28676-fix-fli-dos"
          },
          {
            "name": "https://github.com/python-pillow/Pillow/pull/5377",
            "refsource": "MISC",
            "url": "https://github.com/python-pillow/Pillow/pull/5377"
          },
          {
            "name": "FEDORA-2021-77756994ba",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/"
          },
          {
            "name": "GLSA-202107-33",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202107-33"
          },
          {
            "name": "[debian-lts-announce] 20210722 [SECURITY] [DLA 2716-1] pillow security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html"
          },
          {
            "name": "https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856",
            "refsource": "MISC",
            "url": "https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c8.2.0",
          "affected_versions": "All versions before 8.2.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-835",
            "CWE-937"
          ],
          "date": "2021-09-14",
          "description": "For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load.",
          "fixed_versions": [
            "8.2.0"
          ],
          "identifier": "CVE-2021-28676",
          "identifiers": [
            "CVE-2021-28676"
          ],
          "not_impacted": "All versions starting from 8.2.0",
          "package_slug": "pypi/Pillow",
          "pubdate": "2021-06-02",
          "solution": "Upgrade to version 8.2.0 or above.",
          "title": "Loop with Unreachable Exit Condition (Infinite Loop)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-28676"
          ],
          "uuid": "2414b057-3bd3-4f45-9fc6-9c927a66c351"
        }
      ]
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "67AB0921-A1F5-4B3B-BED5-FC8B1DAF30C6",
                    "versionEndExcluding": "8.2.0",
                    "vulnerable": true
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                "negate": false,
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        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "An issue was discovered in Pillow before 8.2.0. For FLI data, FliDecode did not properly check that the block advance was non-zero, potentially leading to an infinite loop on load."
          },
          {
            "lang": "es",
            "value": "Se detect\u00f3 un problema en Pillow versiones anteriores a 8.2.0,. En el caso de los datos FLI, la funci\u00f3n FliDecode no comprobaba correctamente que el avance del bloque fuera distinto de cero, lo que pod\u00eda conllevar un bucle infinito en la carga"
          }
        ],
        "id": "CVE-2021-28676",
        "lastModified": "2023-12-22T15:15:07.550",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "PARTIAL",
                "baseScore": 5.0,
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 2.9,
              "obtainAllPrivilege": false,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
            }
          ],
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
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              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-06-02T16:15:08.797",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch"
            ],
            "url": "https://github.com/python-pillow/Pillow/commit/bb6c11fb889e6c11b0ee122b828132ee763b5856"
          },
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            "source": "cve@mitre.org",
            "tags": [
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          },
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            "tags": [
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            "url": "https://security.gentoo.org/glsa/202107-33"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
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                "value": "CWE-835"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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