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High

Security advisory

Type: advisorySources: OSVCVE: CVE-2020-5313

libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2020-5313
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 09:40 UTC · Revision 1

Source evidence

CVE-2020-5313

core-osv · Original source

Published 3 Jan 2020, 01:15 UTC

libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.

osv:CVE-2020-5313
Complete source record
{
  "id": "18ec13e8144eea07a209ee263b04603cef7861ad1f01989bc81dd84cdd4ed154",
  "url": "https://osv.dev/vulnerability/CVE-2020-5313",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-5313",
    "summary": "libImaging/FliDecode.c in Pillow before 6.2.2 has an FLI buffer overflow.",
    "evidence": "osv:CVE-2020-5313",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-5313",
      "aliases": [
        "BIT-pillow-2020-5313",
        "CVE-2020-5313",
        "GHSA-hj69-c76v-86wr",
        "PYSEC-2020-84"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "repo": "https://github.com/python-pillow/pillow",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
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                {
                  "fixed": "a45c8583ff90312a2fddc38567ed736cef4af563"
                },
                {
                  "fixed": "a09acd0decd8a87ccce939d5ff65dab59e7d365b"
                }
              ],
              "database_specific": {
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                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "6.2.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a09acd0decd8a87ccce939d5ff65dab59e7d365b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
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            "6.2.0",
            "6.1.0",
            "6.0.0",
            "5.4.0",
            "5.3.0",
            "5.2.0",
            "5.1.0",
            "5.0.0",
            "4.3.0",
            "4.2.0",
            "4.1.0",
            "4.0.0",
            "4.0.0a",
            "3.4.0",
            "3.3.0",
            "3.2.0",
            "3.1.0",
            "3.1.0-rc1",
            "2.9.0",
            "2.9.0.dev2",
            "2.9.0.dev1",
            "2.9.0.dev0",
            "2.8.1",
            "2.8.0",
            "2.7.0",
            "2.5.0",
            "2.3.0",
            "2.2.1",
            "2.2.0",
            "2.1.0",
            "2.0.0",
            "1.7.8",
            "1.7.7",
            "1.2",
            "1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5313.json",
            "vanir_signatures": [
              {
                "id": "CVE-2020-5313-b532e49c",
                "digest": {
                  "length": 3419,
                  "function_hash": "302220455464486737318526284033412250665"
                },
                "source": "https://github.com/python-pillow/pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365b",
                "target": {
                  "file": "src/libImaging/FliDecode.c",
                  "function": "ImagingFliDecode"
                },
                "deprecated": false,
                "signature_type": "Function",
                "signature_version": "v1"
              },
              {
                "id": "CVE-2020-5313-d95c34be",
                "digest": {
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                  "line_hashes": [
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                },
                "source": "https://github.com/python-pillow/pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365b",
                "target": {
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                },
                "deprecated": false,
                "signature_type": "Line",
                "signature_version": "v1"
              }
            ],
            "vanir_signatures_modified": "2026-10-25T01:16:48Z"
          }
        }
      ],
      "modified": "2026-10-25T01:16:48.321537699Z",
      "provider": "osv",
      "references": [
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2MMU3WT2X64GS5WHDPKKC2WZA7UIIQ3A/",
        "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3DUMIBUYGJRAVJCTFUWBRLVQKOUTVX5P/",
        "https://pillow.readthedocs.io/en/stable/releasenotes/6.2.2.html",
        "https://usn.ubuntu.com/4272-1/",
        "https://www.debian.org/security/2020/dsa-4631",
        "https://github.com/python-pillow/Pillow/commit/a09acd0decd8a87ccce939d5ff65dab59e7d365b"
      ],
      "provider_metadata": {
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              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*"
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            "vendor_product": "canonical:ubuntu_linux",
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            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
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                    "introduced": "9.0"
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                    "last_affected": "9.0"
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                    "introduced": "10.0"
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                  {
                    "last_affected": "10.0"
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                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
              "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
              {
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                  },
                  {
                    "last_affected": "30"
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                    "introduced": "31"
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                  {
                    "last_affected": "31"
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                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2020-5313",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 444446,
  "published_at": "2020-01-03T01:15:11.32+00:00"
}