UnratedFix available

UBUNTU-CVE-2025-64512

Type: advisorySource: OSV1 source record

Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The `CMapDB._load_data()` function in pdfminer.six uses `pickle.loads()` to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in the `cmap/` directory, but a malicious PDF can specify an alternative directory and filename as long as the filename ends in `.pickle.gz`. A malicious, zipped pickle file can then contain code which will automatically execute when the PDF is processed. Version 20251107 fixes the issue.

Announced 10 Nov 2025Group revision 1

Original source ↗

UBUNTU-CVE-2025-64512

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:UBUNTU-CVE-2025-64512

pdfminer

Source reference: /affected/0/package/name

Affected versions: 20110515+dfsg-1
Source reference: /affected/0/versions
20140328+dfsg-1
Source reference: /affected/0/versions
Fixed versions: 20140328+dfsg-1ubuntu0.16.04.1~esm1
Source reference: /affected/0/ranges
Prerequisites: Not stated in this record

pdfminer

Source reference: /affected/1/package/name

Affected versions: 20140328+dfsg-1
Source reference: /affected/1/versions
Fixed versions: 20140328+dfsg-1ubuntu0.18.04.1~esm1
Source reference: /affected/1/ranges
Prerequisites: Not stated in this record

pdfminer

Source reference: /affected/2/package/name

Affected versions: 20181108+dfsg-3
Source reference: /affected/2/versions
20191020+dfsg-1
Source reference: /affected/2/versions
20191020+dfsg-2
Source reference: /affected/2/versions
Fixed versions: 20191020+dfsg-2ubuntu0.1~esm1
Source reference: /affected/2/ranges
Prerequisites: Not stated in this record

pdfminer

Source reference: /affected/3/package/name

Affected versions: 20200726-1
Source reference: /affected/3/versions
20201018+dfsg-1
Source reference: /affected/3/versions
20220319+dfsg-1
Source reference: /affected/3/versions
Fixed versions: 20220319+dfsg-1ubuntu0.1~esm1
Source reference: /affected/3/ranges
Prerequisites: Not stated in this record

pdfminer

Source reference: /affected/4/package/name

Affected versions: 20221105+dfsg-1
Source reference: /affected/4/versions
Fixed versions: 20221105+dfsg-1ubuntu0.1~esm1
Source reference: /affected/4/ranges
Prerequisites: Not stated in this record

pdfminer

Source reference: /affected/5/package/name

Affected versions: 20221105+dfsg-1
Source reference: /affected/5/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "20140328+dfsg-1ubuntu0.16.04.1~esm1"
          }
        ]
      }
    ],
    "package": {
      "name": "pdfminer",
      "purl": "pkg:deb/ubuntu/pdfminer?arch=source&distro=esm-apps-legacy%2Fxenial",
      "ecosystem": "Ubuntu:Pro:16.04:LTS"
    },
    "versions": [
      "20110515+dfsg-1",
      "20140328+dfsg-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "pdfminer-data",
          "binary_version": "20140328+dfsg-1ubuntu0.16.04.1~esm1"
        },
        {
          "binary_name": "python-pdfminer",
          "binary_version": "20140328+dfsg-1ubuntu0.16.04.1~esm1"
        }
      ],
      "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
    }
  },
  {
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      {
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          {
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          }
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    ],
    "package": {
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      "ecosystem": "Ubuntu:Pro:18.04:LTS"
    },
    "versions": [
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    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
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        },
        {
          "binary_name": "python-pdfminer",
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      ],
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    ],
    "package": {
      "name": "pdfminer",
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      "ecosystem": "Ubuntu:Pro:20.04:LTS"
    },
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      "20181108+dfsg-3",
      "20191020+dfsg-1",
      "20191020+dfsg-2"
    ],
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      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "pdfminer-data",
          "binary_version": "20191020+dfsg-2ubuntu0.1~esm1"
        },
        {
          "binary_name": "python3-pdfminer",
          "binary_version": "20191020+dfsg-2ubuntu0.1~esm1"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
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          }
        ]
      }
    ],
    "package": {
      "name": "pdfminer",
      "purl": "pkg:deb/ubuntu/pdfminer?arch=source&distro=esm-apps%2Fjammy",
      "ecosystem": "Ubuntu:Pro:22.04:LTS"
    },
    "versions": [
      "20200726-1",
      "20201018+dfsg-1",
      "20220319+dfsg-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "pdfminer-data",
          "binary_version": "20220319+dfsg-1ubuntu0.1~esm1"
        },
        {
          "binary_name": "python3-pdfminer",
          "binary_version": "20220319+dfsg-1ubuntu0.1~esm1"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
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          }
        ]
      }
    ],
    "package": {
      "name": "pdfminer",
      "purl": "pkg:deb/ubuntu/pdfminer?arch=source&distro=esm-apps%2Fnoble",
      "ecosystem": "Ubuntu:Pro:24.04:LTS"
    },
    "versions": [
      "20221105+dfsg-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "pdfminer-data",
          "binary_version": "20221105+dfsg-1ubuntu0.1~esm1"
        },
        {
          "binary_name": "python3-pdfminer",
          "binary_version": "20221105+dfsg-1ubuntu0.1~esm1"
        }
      ],
      "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "pdfminer",
      "purl": "pkg:deb/ubuntu/pdfminer?arch=source&distro=questing",
      "ecosystem": "Ubuntu:25.10"
    },
    "versions": [
      "20221105+dfsg-1"
    ],
    "database_specific": {
      "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-64512.json"
    },
    "ecosystem_specific": {
      "binaries": [
        {
          "binary_name": "pdfminer-data",
          "binary_version": "20221105+dfsg-1"
        },
        {
          "binary_name": "python3-pdfminer",
          "binary_version": "20221105+dfsg-1"
        }
      ]
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #23707 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 06:23:43 GMT
Publisher date: Mon, 10 Nov 2025 22:15:00 GMT

Read the original announcement

Revision history

25 Oct 2026UBUNTU-CVE-2025-64512 · Revision 1Source updated