PT-2022-24246 · Samsung · Samsung Mtower

C01Dkit · Published 2022-08-11 · Updated 2022-08-15 · CVE-2022-38155

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 The issue allows a trusted application to achieve excessive memory allocation via a large len value, potentially leading to a kernel crash, as demonstrated by a Numaker-PFM-M2351 TEE kernel crash.

Recommendations For Samsung mTower versions 0.3.0 and earlier, consider restricting the len value to prevent excessive memory allocation until a patch is available. As a temporary workaround, restrict access to the TEE Malloc function to minimize the risk of exploitation.

Exploit

Fix

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2022-38155

Affected Products

Samsung Mtower

References · 5

• 🔥 https://github.com/Samsung/mTower/blob/18f4b592a8a973ce5972f4e2658ea0f6e3686284/tee/lib/libutee/tee_api.c#L314 · Exploit
• 🔥 https://github.com/Samsung/mTower/issues/74 · Exploit
• https://osv.dev/vulnerability/CVE-2022-38155 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-38155 · Security Note
• https://t.me/cibsecurity/47929 · Telegram Post