VDB
KO
LOW 2.8

GHSA-f37v-82c4-4x64

Electron: Crash in clipboard.readImage() on malformed clipboard image data

Details

### Impact Apps that call `clipboard.readImage()` may be vulnerable to a denial of service. If the system clipboard contains image data that fails to decode, the resulting null bitmap is passed unchecked to image construction, triggering a controlled abort and crashing the process.

Apps are only affected if they call `clipboard.readImage()`. Apps that do not read images from the clipboard are not affected. This issue does not allow memory corruption or code execution.

### Workarounds Validate that the clipboard contains image data via `clipboard.availableFormats()` before calling `clipboard.readImage()`. Note this only narrows the window — upgrading to a fixed version is recommended.

### Fixed Versions * `42.0.0-alpha.5` * `41.1.0` * `40.8.5` * `39.8.5`

### For more information If you have any questions or comments about this advisory, email us at [security@electronjs.org](mailto:security@electronjs.org)

Are you affected?

Enter the version of the package you're using.

Affected packages

npm / electron
Introduced in: 0 Fixed in: 39.8.5
Fix npm install electron@39.8.5
npm / electron
Introduced in: 40.0.0-alpha.1 Fixed in: 40.8.5
Fix npm install electron@40.8.5
npm / electron
Introduced in: 41.0.0-alpha.1 Fixed in: 41.1.0
Fix npm install electron@41.1.0
npm / electron
Introduced in: 42.0.0-alpha.1 Fixed in: 42.0.0-alpha.5
Fix npm install electron@42.0.0-alpha.5

References