CVE-2024-55567: insydeh2o Input Validation Flaw — Fix

Description

Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-20 Improper Input Validation

Affected Products

Vendor	Product	Versions
insyde	insydeh2o	5.4 — 5.4.05.47.01
insyde	insydeh2o	5.5 — 5.5.05.55.01
insyde	insydeh2o	5.6 — 5.6.05.62.01
insyde	insydeh2o	5.7 — 5.7.05.71.01

References

Advisories & Patches

https://www.insyde.com/security-pledge/sa-2024018/

Frequently Asked Questions

What is CVE-2024-55567? +

Improper input validation was discovered in UsbCoreDxe in Insyde InsydeH2O kernel 5.4 before 05.47.01, 5.5 before 05.55.01, 5.6 before 05.62.01, and 5.7 before 05.71.01. The SMM module has an SMM call out vulnerability which can be used to write arbitrary memory inside SMRAM and execute arbitrary code at SMM level. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-55567? +

CVE-2024-55567 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-55567? +

CVE-2024-55567 affects products from insyde, specifically: insydeh2o. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-55567? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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