CVE-2023-36810 – pypdf2

Package

Manager: pip
Name: pypdf2
Vulnerable Version: >=0 <1.27.9

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

EPSS: 0.00123 pctl0.3228

Details

PyPDF2 quadratic runtime with malformed PDF missing xref marker ### Impact An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. ### Patches https://github.com/py-pdf/pypdf/pull/808 ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ ### References * [PyPDF2 PR #808](https://github.com/py-pdf/pypdf/pull/808) * [PyPDF2 Issue #582](https://github.com/py-pdf/pypdf/issues/582)

Metadata

Created: 2023-06-30T22:17:52Z
Modified: 2023-06-30T22:17:52Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/06/GHSA-jrm6-h9cq-8gqw/GHSA-jrm6-h9cq-8gqw.json
CWE IDs: ["CWE-407"]
Alternative ID: GHSA-jrm6-h9cq-8gqw
Finding: F067
Auto approve: 1