GHSA-vv43-5jgx-7qv8
Electron: Local race condition in Squirrel.Mac update installation on macOS
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
On macOS, Electron bundles the Squirrel.Mac auto-update framework, whose privileged `ShipIt` helper performs the final step of an update as root. A local attacker could cause that helper to overwrite a different application's files, as root, instead of the app that started the update. Exploitation requires local access to the machine.
Apps are only affected on macOS if they ship Squirrel.Mac-based auto-updates. Apps on other platforms, or that do not use Squirrel.Mac auto-updates, are not affected.
### Workarounds
There are no app side workarounds, you must update to a patched version of Electron.
### Fixed Versions
* `42.0.0-beta.2`
* `41.10.5`
* `39.8.10`
### For more information
If you have any questions or comments about this advisory, email us at [[email protected]](mailto:[email protected])
References
External links from the advisory. They lead to third-party sites.
- https://github.com/electron/electron/security/advisories/GHSA-vv43-5jgx-7qv8
- https://github.com/electron/electron/pull/50745
- https://github.com/electron/electron/commit/01faabfc250801a980fc94d64608046c67fc1cd9
- https://github.com/electron/electron/commit/15e2928a5c5f01759107b414010e220d90d59cef
- https://github.com/electron/electron/commit/a0f9ff4cc0340545008424232d49caadd9c0c767
- https://github.com/electron/electron/commit/b8f25c4cedb2e0f5f475912b709aba19c57c26be
- https://github.com/electron/electron
- https://github.com/electron/electron/releases/tag/v39.8.10
- https://github.com/electron/electron/releases/tag/v41.10.5
- https://github.com/electron/electron/releases/tag/v42.0.0-beta.2