Vulnerability CVE-2023-23298
Published: 2023-05-23

Description:
The `Toybox.Graphics.BufferedBitmap.initialize` API method in CIQ API version 2.3.0 through 4.1.7 does not validate its parameters, which can result in integer overflows when allocating the underlying bitmap buffer. A malicious application could call the API method with specially crafted parameters and hijack the execution of the device's firmware.

 References:
https://developer.garmin.com/connect-iq/compatible-devices/
https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23298.md
https://developer.garmin.com/connect-iq/api-docs/Toybox/Graphics/BufferedBitmap.html#initialize-instance_function
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