CVE-2023-22616

An issue was discovered in Insyde InsydeH2O with kernel 5.2 through 5.5. The Save State register is not checked before use. The IhisiSmm driver does not check the value of a save state register before use. Due to insufficient input validation, an attacker can corrupt SMRAM.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 19%
VendorProductVersion
insydeinsydeh2o
5.2 ≤
𝑥
≤ 5.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2023022
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2023022