CVE-2023-46250 (https://github.com/py-pdf/pypdf/security/advisories/GHSA-wjcc-cq79-p63f): 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`. CVE-2023-36464 (https://github.com/py-pdf/pypdf/security/advisories/GHSA-4vvm-4w3v-6mr8): pypdf is an open source, pure-python PDF library. In affected versions an attacker may craft a PDF which leads to an infinite loop if `__parse_content_stream` is executed. That is, for example, the case if the user extracted text from such a PDF. This issue was introduced in pull request #969 and resolved in pull request #1828. Users are advised to upgrade. Users unable to upgrade may modify the line `while peek not in (b"\r", b"\n")` in `pypdf/generic/_data_structures.py` to `while peek not in (b"\r", b"\n", b"")`. CVE-2023-36464 is fixed in 3.9.0, CVE-2023-46250 is fixed in 3.17.0. Please stabilize >=3.17.0.
cleanup done.
