CVE-2023-22613 — HIGH (8.8)

Vulnerability Description

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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Insyde	Insydeh2O	05.27.37

Related Weaknesses (CWE)

CWE-787

References

https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Not Applicable
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023023Vendor Advisory
https://research.nccgroup.com/2023/04/11/stepping-insyde-system-management-mode/Not Applicable
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023023Vendor Advisory

FAQ

What is CVE-2023-22613?

CVE-2023-22613 is a vulnerability with a CVSS score of 8.8 (HIGH). 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...

How severe is CVE-2023-22613?

CVE-2023-22613 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-22613?

Check the references section above for vendor advisories and patch information. Affected products include: Insyde Insydeh2O.