CVE-2023-46250
Possible Infinite Loop when PdfWriter(clone_from) is used with a PDF
5.1
MEDIUM
CVSS 3.1
EPSS 0.24%
描述
### 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.py` just like #2264 did.
如何修補 CVE-2023-46250
要修補 CVE-2023-46250,請將受影響套件升級到下列已修補版本。
- —升級至 3.17.0 或更新版本
- —升級至 3.17.0 或更新版本
CVE-2023-46250 正在被利用嗎?
低 — EPSS 為 0.2%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- >= 3.7.0, < 3.17.0
- >= 3.7.0, < 3.17.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.1 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |