Vulnerability Monitor

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CVE-2018-8930

The AMD EPYC Server, Ryzen, Ryzen Pro, and Ryzen Mobile processor chips have insufficient enforcement of Hardware Validated Boot, aka MASTERKEY-1, MASTERKEY-2, and MASTERKEY-3.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.0, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 8 products from amd, from amd, from amd and 5 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2018-03-22T14:29:00.597

Last Modified

2024-11-21T04:14:37.600

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 9.0 (CRITICAL)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	amd	ryzen_mobile_firmware	-	Yes
Hardware	amd	ryzen_mobile	-	No
Operating System	amd	ryzen_pro_firmware	-	Yes
Hardware	amd	ryzen_pro	-	No
Operating System	amd	epyc_server_firmware	-	Yes
Hardware	amd	epyc_server	-	No
Operating System	amd	ryzen_firmware	-	Yes
Hardware	amd	ryzen	-	No

References

https://amdflaws.com/ Third Party Advisory ([email protected])
https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/ Third Party Advisory ([email protected])
https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research Vendor Advisory ([email protected])
https://safefirmware.com/amdflaws_whitepaper.pdf Third Party Advisory ([email protected])
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03841en_us ([email protected])
https://amdflaws.com/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://safefirmware.com/amdflaws_whitepaper.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03841en_us (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For amd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.