CVE-2023-22615 — HIGH (8.4)

Vulnerability Description

An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that overlaps SMRAM, thereby coercing an IHISI subfunction handler to overwrite private SMRAM.

CVSS Score

8.4

HIGH

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

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Insyde	Insydeh2O	05.37.03

Related Weaknesses (CWE)

CWE-787

References

https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023021Vendor Advisory
https://www.insyde.com/security-pledgeVendor Advisory
https://www.insyde.com/security-pledge/SA-2023021Vendor Advisory

FAQ

What is CVE-2023-22615?

CVE-2023-22615 is a vulnerability with a CVSS score of 8.4 (HIGH). An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI subfunction execution may corrupt SMRAM. An attacker can pass an address in the RCX save state register that ...

How severe is CVE-2023-22615?

CVE-2023-22615 has been rated HIGH with a CVSS base score of 8.4/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2023-22615?

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