CVE-2023-46250
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.
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- pypdf project/pypdf
- Source
- security-advisories@github.com
References
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2dPatch
- https://github.com/py-pdf/pypdf/pull/2264Issue Tracking, Patch
- 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 Tracking, Patch
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63fVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.