CVE-2023-46250
mediumpypdf is a free and open-source pure-python PDF library.
Vendor / product: Py-pdf — pypdf
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/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d security-advisories@github.com
- https://github.com/py-pdf/pypdf/pull/2264 security-advisories@github.com
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f security-advisories@github.com
- https://github.com/py-pdf/pypdf/commit/9b23ac3c9619492570011d551d521690de9a3e2d af854a3a-2127-422b-91ae-364da2661108
- https://github.com/py-pdf/pypdf/pull/2264 af854a3a-2127-422b-91ae-364da2661108
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f af854a3a-2127-422b-91ae-364da2661108