CVE-2023-23300 Information

Description

The Toybox.Cryptography.Cipher.initialize API method in CIQ API version 3.0.0 through 4.1.7 does not validate its parameters which can result in buffer overflows when copying data. A malicious application could call the API method with specially crafted parameters and hijack the execution of the device’s firmware.

Reference

https://developer.garmin.com/connect-iq/api-docs/Toybox/Cryptography/Cipher.html#initialize-instance_function https://github.com/anvilsecure/garmin-ciq-app-research/blob/main/advisories/CVE-2023-23300.md