CVE-2025-64512
pdfminer - security update
Description
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.
How to fix CVE-2025-64512
To remediate CVE-2025-64512, upgrade the affected package to a fixed version below.
- —upgrade to 20200726-1+deb11u1 or later
- —upgrade to 20200726-1+deb11u1 or later
- —upgrade to 20221105+dfsg-1.1~deb12u1 or later
- —upgrade to 20251107 or later
Is CVE-2025-64512 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 20200726-1+deb11u1
- from 0, < 20200726-1+deb11u1
- from 0, < 20221105+dfsg-1.1~deb12u1
- from 0, < 20251107
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |