An issue was discovered on Samsung mobile devices with N(7.1) and O(8.x) (Exynos chipsets) software. The ion debugfs driver allows information disclosure. The Samsung ID is SVE-2018-13427 (February 2019).
Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Android | 7.1 (including) | 7.1 (including) | |
| Android | 8.0 (including) | 8.0 (including) | |
| Android | 8.1 (including) | 8.1 (including) |
While logging all information may be helpful during development stages, it is important that logging levels be set appropriately before a product ships so that sensitive user data and system information are not accidentally exposed to potential attackers. Different log files may be produced and stored for: