Vulnerability Description
pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 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. The issue was fixed in version 3.17.0. As a workaround, apply the patch manually by modifying `pypdf/generic/_data_structures.py`.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pypdf Project | Pypdf | >= 3.7.0, < 3.17.0 |
Related Weaknesses (CWE)
References
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2dPatch
- https://github.com/py-pdf/pypdf/pull/2264Issue TrackingPatch
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63fVendor Advisory
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2dPatch
- https://github.com/py-pdf/pypdf/pull/2264Issue TrackingPatch
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63fVendor Advisory
FAQ
What is CVE-2023-46250?
CVE-2023-46250 is a vulnerability with a CVSS score of 5.1 (MEDIUM). pypdf is a free and open-source pure-python PDF library. An attacker who uses a vulnerability present in versions 3.7.0 through 3.16.4 can craft a PDF which leads to an infinite loop. This infinite lo...
How severe is CVE-2023-46250?
CVE-2023-46250 has been rated MEDIUM with a CVSS base score of 5.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-46250?
Check the references section above for vendor advisories and patch information. Affected products include: Pypdf Project Pypdf.