Vulnerability Details CVE-2023-46250
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`.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 26.7%
CVSS Severity
CVSS v3 Score 5.1
References
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d
- https://github.com/py-pdf/pypdf/pull/2264
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d
- https://github.com/py-pdf/pypdf/pull/2264
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f
Products affected by CVE-2023-46250
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cpe:2.3:a:pypdf_project:pypdf:3.10.0
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cpe:2.3:a:pypdf_project:pypdf:3.11.0
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cpe:2.3:a:pypdf_project:pypdf:3.11.1
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cpe:2.3:a:pypdf_project:pypdf:3.12.0
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cpe:2.3:a:pypdf_project:pypdf:3.12.1
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cpe:2.3:a:pypdf_project:pypdf:3.12.2
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cpe:2.3:a:pypdf_project:pypdf:3.13.0
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cpe:2.3:a:pypdf_project:pypdf:3.14.0
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cpe:2.3:a:pypdf_project:pypdf:3.15.0
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cpe:2.3:a:pypdf_project:pypdf:3.15.1
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cpe:2.3:a:pypdf_project:pypdf:3.15.2
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cpe:2.3:a:pypdf_project:pypdf:3.15.3
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cpe:2.3:a:pypdf_project:pypdf:3.15.4
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cpe:2.3:a:pypdf_project:pypdf:3.15.5
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cpe:2.3:a:pypdf_project:pypdf:3.16.0
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cpe:2.3:a:pypdf_project:pypdf:3.16.1
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cpe:2.3:a:pypdf_project:pypdf:3.16.2
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cpe:2.3:a:pypdf_project:pypdf:3.16.3
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cpe:2.3:a:pypdf_project:pypdf:3.16.4
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cpe:2.3:a:pypdf_project:pypdf:3.7.0
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cpe:2.3:a:pypdf_project:pypdf:3.7.1
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cpe:2.3:a:pypdf_project:pypdf:3.8.0
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cpe:2.3:a:pypdf_project:pypdf:3.8.1
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cpe:2.3:a:pypdf_project:pypdf:3.9.0
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cpe:2.3:a:pypdf_project:pypdf:3.9.1