CVE-2023-36810
mediumpypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files.
Vendor / product: Py-pdf — pypdf
pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. This issue has been addressed in PR 808 and versions from 1.27.9 include this fix. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS:3.1/AV:N/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/issues/582 security-advisories@github.com
- https://github.com/py-pdf/pypdf/pull/808 security-advisories@github.com
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jrm6-h9cq-8gqw security-advisories@github.com
- https://lists.debian.org/debian-lts-announce/2023/07/msg00019.html security-advisories@github.com
- https://github.com/py-pdf/pypdf/issues/582 af854a3a-2127-422b-91ae-364da2661108
- https://github.com/py-pdf/pypdf/pull/808 af854a3a-2127-422b-91ae-364da2661108
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jrm6-h9cq-8gqw af854a3a-2127-422b-91ae-364da2661108
- https://lists.debian.org/debian-lts-announce/2023/07/msg00019.html af854a3a-2127-422b-91ae-364da2661108