GHSA-wjcc-cq79-p63f
Suggest an improvement- Source
- https://github.com/advisories/GHSA-wjcc-cq79-p63f
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/10/GHSA-wjcc-cq79-p63f/GHSA-wjcc-cq79-p63f.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/GHSA-wjcc-cq79-p63f
- Aliases
- Published
- 2023-10-31T22:22:50Z
- Modified
- 2023-11-09T05:19:18.543960Z
- Severity
-
- 5.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF
- Details
-
Impact
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 when the pypdf-user manipulates an incoming malicious PDF e.g. by merging it with another PDF or by adding annotations.
Patches
The issue was fixed with #2264
Workarounds
If you cannot update your version of pypdf, you should modify
pypdf/generic/_data_structures.pyjust like #2264 did. - Database specific
{ "nvd_published_at": "2023-10-31T16:15:09Z", "cwe_ids": [ "CWE-835" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2023-10-31T22:22:50Z" }- References
Affected packages
PyPI / pypdf
Package
- Name
- pypdf
- View open source insights on deps.dev
- Purl
- pkg:pypi/pypdf