PT-2022-25519 · Samsung · Samsung Mtower

C01Dkitop · Published 2022-09-16 · Updated 2022-09-21 · CVE-2022-40759

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2022-40759

Affected Products

Samsung Mtower

References · 4

• https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/lib/libutee/tee_api_operations.c#L1249 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-40759 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40759 · Vendor Advisory
• https://github.com/Samsung/mTower/issues/80 · Note