Vulnerability Description
A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations bypassing, physical memory contents disclosure, discovery of any secrets from any Virtual Machines (VMs) and bypassing memory isolation and confidential computing boundaries. Additionally, an attacker can build a payload which can be injected into the SMRAM memory. This issue affects: Module name: SbPei SHA256: d827182e5f9b7a9ff0b9d3e232f7cfac43b5237e2681e11f005be627a49283a9 Module GUID: c1fbd624-27ea-40d1-aa48-94c3dc5c7e0d
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Intel | Nuc M15 Laptop Kit Lapbc510 Firmware | 0072 |
| Intel | Nuc M15 Laptop Kit Lapbc510 | - |
| Intel | Nuc M15 Laptop Kit Lapbc710 Firmware | 0072 |
| Intel | Nuc M15 Laptop Kit Lapbc710 | - |
Related Weaknesses (CWE)
References
- https://www.ami.com/security-center/Vendor Advisory
- https://www.binarly.io/advisories/BRLY-2022-014ExploitThird Party Advisory
- https://www.ami.com/security-center/Vendor Advisory
- https://www.binarly.io/advisories/BRLY-2022-014ExploitThird Party Advisory
FAQ
What is CVE-2022-40246?
CVE-2022-40246 is a vulnerability with a CVSS score of 7.2 (HIGH). A potential attacker can write one byte by arbitrary address at the time of the PEI phase (only during S3 resume boot mode) and influence the subsequent boot stages. This can lead to the mitigations b...
How severe is CVE-2022-40246?
CVE-2022-40246 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-40246?
Check the references section above for vendor advisories and patch information. Affected products include: Intel Nuc M15 Laptop Kit Lapbc510 Firmware, Intel Nuc M15 Laptop Kit Lapbc510, Intel Nuc M15 Laptop Kit Lapbc710 Firmware, Intel Nuc M15 Laptop Kit Lapbc710.