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.
There are no app side workarounds, you must update to a patched version of Electron.
41.0.0-beta.840.8.039.8.138.8.6If there are any questions or comments about this advisory, please email security@electronjs.org
38.8.639.8.140.8.041.0.0-beta.8Exploitability
AV:LAC:HPR:NUI:RScope
S:UImpact
C:HI:HA:H7.0/CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H