Sourced from The GitHub Security Advisory Database.

Arbitrary file read via window-open IPC in Electron

Impact

The vulnerability allows arbitrary local file read by defining unsafe window options on a child window opened via window.open.

Workarounds

Ensure you are calling event.preventDefault() on all new-window events where the url or options is not something you expect.

Fixed Versions

• 9.0.0-beta.21
• 8.2.4
• 7.2.4

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected]

Affected versions: < 7.2.4

Sourced from The GitHub Security Advisory Database.

Context isolation bypass via contextBridge in Electron

Impact

Apps using both contextIsolation and contextBridge are affected.

This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions.

Workarounds

There are no app-side workarounds, you must update your Electron version to be protected.

Fixed Versions

• 9.0.0-beta.21
• 8.2.4
• 7.2.4

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected]

Affected versions: < 7.2.4

Sourced from The GitHub Security Advisory Database.

Context isolation bypass via leaked cross-context objects in Electron

Impact

Apps using contextIsolation are affected.

This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions.

Workarounds

There are no app-side workarounds, you must update your Electron version to be protected.

Fixed Versions

• 9.0.0-beta.21
• 8.2.4
• 7.2.4

Non-Impacted Versions

• 9.0.0-beta.*

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected]

Affected versions: < 7.2.4

Sourced from The GitHub Security Advisory Database.

Context isolation bypass via Promise in Electron

Impact

Apps using contextIsolation are affected.

This is a context isolation bypass, meaning that code running in the main world context in the renderer can reach into the isolated Electron context and perform privileged actions.

Workarounds

There are no app-side workarounds, you must update your Electron version to be protected.

Fixed Versions

• 9.0.0-beta.21
• 8.2.4
• 7.2.4
• 6.1.11

For more information

If you have any questions or comments about this advisory:

• Email us at [email protected]

Affected versions: < 6.1.11

Sourced from The GitHub Security Advisory Database.

IPC messages delivered to the wrong frame in Electron

Impact

IPC messages sent from the main process to a subframe in the renderer process, through webContents.sendToFrame, event.reply or when using the remote module, can in some cases be delivered to the wrong frame.

If your app does ANY of the following, then it is impacted by this issue:

• Uses remote
• Calls webContents.sendToFrame
• Calls event.reply in an IPC message handler

Patches

This has been fixed in the following versions:

• 9.4.0
• 10.2.0
• 11.1.0
• 12.0.0-beta.9

Workarounds

There are no workarounds for this issue.

For more information

... (truncated)

Affected versions: < 9.4.0

Sourced from electron's releases.

electron v9.4.0

Release Notes for v9.4.0

Fixes

• Added Electron DLLs like libGLESv2.dll to symbol server. #26967 (Also in 10, 11, 12)
• Fixed systemPreferences.effectiveAppearance returning systemPreferences.getAppLevelAppearance(). #26881 (Also in 10, 11, 12)
• Fixed an issue where event.reply could sometimes not deliver a reply to an IPC message when cross-site iframes were present. #26928 (Also in 10, 11, 12)
• Fixed an issue where some buttons were un-clickable in some BrowserViews with draggable regions enabled. #26745 (Also in 10, 11)
• Fixed an issue whereby a corrupted async_hooks stack would crash the renderer when throwing some errors in the renderer process. #26748 (Also in 10, 11)
• Fixed an occasional crash on Windows related to NativeViewHost::SetParentAccessible. #26950 (Also in 10, 11, 12)
• Fixed usage of --disable-dev-shm-usage for apps using --no-sandbox on linux. #26806

Other Changes

• Backported the fix to CVE-2020-16024: Heap buffer overflow in UI. #26831
• Security: backport fix for 1150649. #26897
• Security: backported fix for 1137603. #26893
• Security: backported fix for 1141350. #26895
• Security: backported the fix to CVE-2020-16014: Use after free in PPAPI. #26856
• Security: backported the fix to CVE-2020-16015: Insufficient data validation in WASM. #26859
• Security: backported the fix to CVE-2020-16022: Insufficient policy enforcement in networking. #26861

electron v9.3.5

Release Notes for v9.3.5

Fixes

• Fixed <webview> render-process-gone event dispatch. #26576
• Fixed LC_ALL environment variable getting changed in Electron. #26508 (Also in 10, 11)
• Fixed debug.log files being created under working directory on windows. #26267 (Also in 10)
• Fixed draggable regions stops working when devtools is opened on macOS. #26506 (Also in 10, 11)

Other Changes

• Backported the fix to CVE-2020-16017: Browser UAF when detaching a provisional frame. #26477
• Fixed value of getSystemVersion() on Big Sur. #26430
• Security: backported fix for 1143772. #26400
• Security: backported fix for 1144489. #26397
• Security: backported fix for chromium:1133527. #26412
• Security: backported fix for chromium:1137608. #26409
• Security: backported fix for chromium:1139398. #26406

Unknown

• Re-enable Rosetta on Apple Silicon devices. #26572 (Also in 7.3, 8, 10, 11)

electron v9.3.4

Release Notes for v9.3.4

Fixes

• Fixed an issue where Hover Text on macOS Catalina did not work without VoiceOver also being enabled. #26244 (Also in 10, 11)

... (truncated)

• f37c1ff Bump v9.4.0
• 5c8e7e8 fix: restrict sendToFrame to same-process frames by default (#26928)
• 36b1f8f fix: Upload all *.dll.pdb to symbol server (#26967)
• e83bd9b fix: Avoid crashing in NativeViewHost::SetParentAccessible on Windows 10 (#26...
• c2136b6 chore: cherry-pick 290fe9c6e245 from v8 (#26897)
• a574285 chore: cherry-pick 3abc372c9c00 from chromium (#26895)
• 559c008 chore: cherry-pick d8d64b7cd244 from chromium (#26893)
• 2d41c02 chore: cherry-pick ecdec1fb0f42 from chromium (#26867)
• 662810f chore: cherry-pick bbc6ab5bb49c from chromium (#26861)
• 0065e3d fix: Propagate --disable-dev-shm-usage to child processes (#26806)
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