CVE-2023-36807
CVSS V2 None
CVSS V3 None
Description
pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In version 2.10.5 an attacker who uses this vulnerability 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 if the user extracted metadata from such a malformed PDF. Versions prior to 2.10.5 throw an error, but do not hang forever. This issue was fixed with https://github.com/py-pdf/pypdf/pull/1331 which has been included in release 2.10.6. Users are advised to upgrade. Users unable to upgrade should modify `PyPDF2/generic/_data_structures.py::read_object` to an an error throwing case. See GHSA-hm9v-vj3r-r55m for details.
Overview
- CVE ID
- CVE-2023-36807
- Assigner
- GitHub_M
- Vulnerability Status
- PUBLISHED
- Published Version
- 2023-06-30T18:38:10.303Z
- Last Modified Date
- 2023-06-30T18:38:10.303Z
Weakness Enumerations
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/py-pdf/pypdf/security/advisories/GHSA-hm9v-vj3r-r55m | x_refsource_CONFIRM |
| https://github.com/py-pdf/pypdf/issues/1329 | x_refsource_MISC |
| https://github.com/py-pdf/pypdf/pull/1331 | x_refsource_MISC |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2023-36807 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-36807 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2024-06-25 16:41:22 | Added to TrackCVE |