GHSA-3c8v-cfp5-9885 Electron: Out-of-bounds read in second-instance IPC on macOS and Linux

• npm electron: < 38.8.6 → fixed in 38.8.6 • npm electron: >= 39.0.0-alpha.1, < 39.8.1 → fixed in 39.8.1 • npm electron: >= 40.0.0-alpha.1, < 40.8.1 → fixed in 40.8.1 • npm electron: >= 41.0.0-alpha.1, < 41.0.0 → fixed in 41.0.0

Impact On macOS and Linux, apps that call `app.requestSingleInstanceLock()` were vulnerable to an out-of-bounds heap read when parsing a crafted second-instance message. Leaked memory could be delivered to the app's `second-instance` event handler. This issue is limited to processes running as the same user as the Electron app. Apps that do not call `app.requestSingleInstanceLock()` are not affected. Windows is not affected by this issue. Workarounds There are no app side workarounds, developers must update to a patched version of Electron. Fixed Versions • `41.0.0` • `40.8.1` • `39.8.1` • `38.8.6` For more information If there are any questions or comments about this advisory, please email [email protected]