CVE-2023-36810
An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime.
Does this matter?
Lower severity and a low EPSS score (0.63%). Track it; it rarely justifies an emergency change on its own.
Description
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
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 0.63% probability · 48th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-407
- Affected
- pypdf project/pypdf
- Source
- security-advisories@github.com
References
- https://github.com/py-pdf/pypdf/issues/582Exploit, Issue Tracking, Vendor Advisory
- https://github.com/py-pdf/pypdf/pull/808Patch
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jrm6-h9cq-8gqwExploit, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00019.html
- https://github.com/py-pdf/pypdf/issues/582Exploit, Issue Tracking, Vendor Advisory
- https://github.com/py-pdf/pypdf/pull/808Patch
- https://github.com/py-pdf/pypdf/security/advisories/GHSA-jrm6-h9cq-8gqwExploit, Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/07/msg00019.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.