Airmail 3 for Mac Advisory:EventHandler Race Condition: CVE-2018-15670

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Airmail 3 for Mac

EventHandler Race Condition

CVE ID

CVE-2018-15670

VENDOR

Bloop S.R.L.

PRODUCT

Airmail 3 for Mac

Product version

3.5.9

Vulnerability Details

Airmail's primary WebView instance implements "webView:decidePolicyForNavigationAction:request:frame:decisionListener:" such that "OpenURL" is the default URL handler. A navigation request is processed by the default URL handler only if the "currentEvent" is "NX_LMOUSEUP" or "NX_OMOUSEUP". An attacker may abuse HTML Elements with an EventHandler for a chance to validate navigation requests for URLs that are processed during the "NX_LMOUSEUP" event triggered by clicking an email.

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Vendor response

No response.

Disclosure timeline

08-06-2018 - Vendor disclosure via email
08-13-2018 - Vendor notified via Support Page
08-21-2018 - Vendor notified of the advisory release

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