pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.
A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Library home page: https://files.pythonhosted.org/packages/b2/54/14f9ce3287c995e290206c1a75287aa308e961109fe6a3fb2a91b01a67e3/PyPDF2-2.5.0-py3-none-any.whl
Path to dependency file: /projects/PDF to MP3/requirements.txt
Path to vulnerable library: /projects/PDF to MP3/requirements.txt
Found in HEAD commit: bf2f317cb6b371fa8ba87f3a9f45a7dde720c061
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2023-36464
### Vulnerable Library - PyPDF2-2.5.0-py3-none-any.whlA pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files
Library home page: https://files.pythonhosted.org/packages/b2/54/14f9ce3287c995e290206c1a75287aa308e961109fe6a3fb2a91b01a67e3/PyPDF2-2.5.0-py3-none-any.whl
Path to dependency file: /projects/PDF to MP3/requirements.txt
Path to vulnerable library: /projects/PDF to MP3/requirements.txt
Dependency Hierarchy: - :x: **PyPDF2-2.5.0-py3-none-any.whl** (Vulnerable Library)
Found in HEAD commit: bf2f317cb6b371fa8ba87f3a9f45a7dde720c061
Found in base branch: master
### Vulnerability Detailspypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`.
Publish Date: 2023-06-27
URL: CVE-2023-36464
### CVSS 3 Score Details (6.2)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8
Release Date: 2023-06-27
Fix Resolution: pypdf - 3.9.0
:rescue_worker_helmet: Automatic Remediation will be attempted for this issue.:rescue_worker_helmet:Automatic Remediation will be attempted for this issue.