VDB
KO
HIGH 7.0

GHSA-jjp3-mq3x-295m

Electron: Use-after-free in PowerMonitor on Windows and macOS

Details

### Impact Apps that use the `powerMonitor` module may be vulnerable to a use-after-free. After the native `PowerMonitor` object is garbage-collected, the associated OS-level resources (a message window on Windows, a shutdown handler on macOS) retain dangling references. A subsequent session-change event (Windows) or system shutdown (macOS) dereferences freed memory, which may lead to a crash or memory corruption.

All apps that access `powerMonitor` events (`suspend`, `resume`, `lock-screen`, etc.) are potentially affected. The issue is not directly renderer-controllable.

### Workarounds There are no app side workarounds, you must update to a patched version of Electron.

### Fixed Versions * `41.0.0-beta.8` * `40.8.0` * `39.8.1` * `38.8.6`

### For more information If there are any questions or comments about this advisory, please email [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: 38.8.6
Fix npm install electron@38.8.6
npm / electron
Introduced in: 39.0.0-alpha.1 Fixed in: 39.8.1
Fix npm install electron@39.8.1
npm / electron
Introduced in: 40.0.0-alpha.1 Fixed in: 40.8.0
Fix npm install electron@40.8.0
npm / electron
Introduced in: 41.0.0-alpha.1 Fixed in: 41.0.0-beta.8
Fix npm install electron@41.0.0-beta.8

References