Vulnerability Monitor

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CVE-2022-36338

An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.

Published

2022-09-23T18:15:10.803

Last Modified

2025-05-05T17:18:17.843

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	insyde	insydeh2o	≤ 5.5	Yes

References

https://binarly.io/advisories/BRLY-2022-017/index.html Exploit, Third Party Advisory ([email protected])
https://www.insyde.com/security-pledge Vendor Advisory ([email protected])
https://www.insyde.com/security-pledge/SA-2022029 Vendor Advisory ([email protected])
https://binarly.io/advisories/BRLY-2022-017/index.html Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge/SA-2022029 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)