GHSA-wjcc-cq79-p63f
Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF
En bref
- Publiée
- Mise à jour
- CVE
- CVE-2023-46250
- Alias
- PYSEC-2026-1834
- CVSS_V3
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
### Impact An attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations. ### Patches The issue was fixed with #2264 ### Workarounds If you cannot update your version of pypdf, you should modify `pypdf/generic/_data_structures.py` just like #2264 did.
Paquets affectés
| Paquet | Versions |
|---|---|
| PyPI · pypdf | introduced 3.7.0, fixed 3.17.0 |
Références
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f WEB
- https://nvd.nist.gov/vuln/detail/CVE-2023-46250 ADVISORY
- https://github.com/py-pdf/pypdf/pull/2264 WEB
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d WEB
- https://github.com/py-pdf/pypdf PACKAGE
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |