PT-2022-25517 · Samsung · Samsung Mtower

Published 2022-09-16 · Updated 2022-09-21 · CVE-2022-40757

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 Buffer Access with Incorrect Length Value issue in the TEE MACComputeFinal function allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE MACComputeFinal with an excessive size value of messageLen.

Recommendations For Samsung mTower versions 0.3.0 and earlier, as a temporary workaround, consider restricting the use of the TEE MACComputeFinal function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2022-40757

Affected Products

Samsung Mtower

References · 5

• https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/lib/libutee/tee_api_operations.c#L1031 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-40757 · Security Note
• https://osv.dev/vulnerability/CVE-2022-40757 · Vendor Advisory
• https://github.com/Samsung/mTower/issues/81 · Note
• https://t.me/cibsecurity/50002 · Telegram Post