Unscored CVE-2023-23298 EUVD-2023-27398GHSA-r4jf-j22c-rq3p

The `Toybox.Graphics.BufferedBitmap.initialize` API method in CIQ API version 2.3.0 through 4.1.7 does not validate its parameters, which c…

Published May 23, 2023 · Updated Jan 21, 2025 · Assigned by mitre

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