CVE-2023-22613

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. It is possible to write to an attacker-controlled address. An attacker could invoke an SMI handler with a malformed pointer in RCX that overlaps SMRAM, resulting in SMM memory corruption.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
mitreCNA
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CVEADP
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CISA-ADPADP
8.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 22%
VendorProductVersion
insydeinsydeh2o
05.27.37
insydeinsydeh2o
05.36.37
insydeinsydeh2o
05.44.45
insydeinsydeh2o
05.52.45
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-2023023
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-2023023