PT-2022-25521 · Samsung · Samsung Mtower

Published 2022-09-16 · Updated 2022-09-21 · CVE-2022-40760

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 MACUpdate function allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE MACUpdate with an excessive size value of chunkSize.

Recommendations For Samsung mTower versions 0.3.0 and earlier, as a temporary workaround, consider restricting the invocation of the TEE MACUpdate function with excessive chunkSize values until a patch is available.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2022-40760

Affected Products

Samsung Mtower

References · 5

• https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/lib/libutee/tee_api_operations.c#L1188 · Patch
• https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/crypto/libtomcrypt/include/tomcrypt_hash.h#L397 · Patch
• https://osv.dev/vulnerability/CVE-2022-40760 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-40760 · Security Note
• https://github.com/Samsung/mTower/issues/81 · Note