Samsung · Samsung Mtower · CVE-2022-40759
**Name of the Vulnerable Software and Affected Versions**
Samsung mTower versions 0.3.0 and earlier
**Description**
A NULL pointer dereference issue in the `TEE MACCompareFinal` function allows a trusted application to trigger a Denial of Service (DoS) by invoking the `TEE MACCompareFinal` function with a NULL pointer for the parameter `operation`.
**Recommendations**
For Samsung mTower versions 0.3.0 and earlier, as a temporary workaround, consider restricting access to the `TEE MACCompareFinal` function to minimize the risk of exploitation. Avoid using the `operation` parameter with a NULL value in the affected function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.