CVE-2021-39184
Electron's sandboxed renderers can obtain thumbnails of arbitrary files through the nativeImage API
描述
### Impact This vulnerability allows a sandboxed renderer to request a "thumbnail" image of an arbitrary file on the user's system. The thumbnail can potentially include significant parts of the original file, including textual data in many cases. All current stable versions of Electron are affected. ### Patches This was fixed with #30728, and the following Electron versions contain the fix: - 15.0.0-alpha.10 - 14.0.0 - 13.3.0 - 12.1.0 - 11.5.0 ### Workarounds If your app enables `contextIsolation`, this vulnerability is significantly more difficult for an attacker to exploit. Further, if your app does not depend on the `createThumbnailFromPath` API, then you can simply disable the functionality. In the main process, before the 'ready' event: ```js delete require('electron').nativeImage.createThumbnailFromPath ``` ### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org).
如何修補 CVE-2021-39184
要修補 CVE-2021-39184,請將受影響套件升級到下列已修補版本。
- —升級至 11.5.0 或更新版本
CVE-2021-39184 正在被利用嗎?
低 — EPSS 為 1.0%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 11.5.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N |