CVE-2023-46250

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`.

Reserved 2023-10-19 | Published 2023-10-31 | Updated 2024-09-05 | Assigner GitHub_M

Problem types

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Product status

>= 3.7.0, < 3.17.0
affected

References

github.com/.../pypdf/security/advisories/GHSA-wjcc-cq79-p63f

github.com/py-pdf/pypdf/pull/2264

github.com/...ommit/9b23ac3c9619492570011d551d521690de9a3e2d

cve.org (CVE-2023-46250)

nvd.nist.gov (CVE-2023-46250)

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