High severity · published Sep 16, 2022
CVE-2022-40757
A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACComputeFinal function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of…
7.5
CVSS
1%
EPSS
No
On KEV
Description
A Buffer Access with Incorrect Length Value vulnerablity in the TEE_MACComputeFinal function in Samsung mTower through 0.3.0 allows a trusted application to trigger a Denial of Service (DoS) by invoking the function TEE_MACComputeFinal with an excessive size value of messageLen.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MT
Mtower · Samsung
through 0.3.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-40757
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-40757
Patch
https://github.com/Samsung/mTower/blob/efd36709306a9afcca5b4782499d01be0c7a02a5/tee/lib/libutee/tee_api_operations.c#L1031
Third Party Advisory
https://github.com/Samsung/mTower/issues/81
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