CVE-2018-8934 - Vulnerability Details - OpenCVE

The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact Complete

Integrity Impact Complete

Availability Impact Complete

This CVE is not in the KEV list.

The EPSS score is 0.00573.

Key SSVC decision points have not yet been added.

Vendors	Products
Amd	Ryzen Ryzen Firmware Ryzen Pro Ryzen Pro Firmware

Configuration 1 [-]

AND

cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:amd:ryzen_pro:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*

cpe:2.3:h:amd:ryzen:-:*:*:*:*:*:*:*

No data.

No data.

Advisories

Source	ID	Title
EUVD	EUVD-2018-20542	The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://amdflaws.com/
https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/
https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research
https://safefirmware.com/amdflaws_whitepaper.pdf

History

No history.

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2018-03-22T14:00:00

Updated: 2024-08-05T07:10:46.982Z

Reserved: 2018-03-22T00:00:00

Link: CVE-2018-8934

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-03-22T14:29:00.863

Modified: 2024-11-21T04:14:38.230

Link: CVE-2018-8934

Redhat

No data.

OpenCVE Enrichment

No data.

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2018-03-22T00:00:00", "descriptions": [{"lang": "en", "value": "The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2018-03-22T14:57:01", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://amdflaws.com/"}, {"tags": ["x_refsource_MISC"], "url": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/"}, {"tags": ["x_refsource_MISC"], "url": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research"}, {"tags": ["x_refsource_MISC"], "url": "https://safefirmware.com/amdflaws_whitepaper.pdf"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2018-8934", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://amdflaws.com/", "refsource": "MISC", "url": "https://amdflaws.com/"}, {"name": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/", "refsource": "MISC", "url": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/"}, {"name": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research", "refsource": "MISC", "url": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research"}, {"name": "https://safefirmware.com/amdflaws_whitepaper.pdf", "refsource": "MISC", "url": "https://safefirmware.com/amdflaws_whitepaper.pdf"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T07:10:46.982Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://amdflaws.com/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://safefirmware.com/amdflaws_whitepaper.pdf"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2018-8934", "datePublished": "2018-03-22T14:00:00", "dateReserved": "2018-03-22T00:00:00", "dateUpdated": "2024-08-05T07:10:46.982Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:ryzen_pro_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "08E59D0B-FB2F-4C17-B9BC-462DFB366777", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:ryzen_pro:-:*:*:*:*:*:*:*", "matchCriteriaId": "BA9541F0-5B33-4F09-B201-E887DA572571", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:amd:ryzen_firmware:-:*:*:*:*:*:*:*", "matchCriteriaId": "CAEA5209-C0F6-4645-A541-A68CBC70695B", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:amd:ryzen:-:*:*:*:*:*:*:*", "matchCriteriaId": "047F0F4D-DCE1-4E3F-A888-39E894DF857D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "The Promontory chipset, as used in AMD Ryzen and Ryzen Pro platforms, has a backdoor in firmware, aka CHIMERA-FW."}, {"lang": "es", "value": "El chipset Promontory, tal y como se utiliza en plataformas AMD Ryzen y Ryzen Pro, tiene una puerta trasera en el firmware. Esto tambi\u00e9n se conoce como CHIMERA-FW."}], "id": "CVE-2018-8934", "lastModified": "2024-11-21T04:14:38.230", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 9.3, "confidentialityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 10.0, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.2, "impactScore": 6.0, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-03-22T14:29:00.863", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://amdflaws.com/"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://safefirmware.com/amdflaws_whitepaper.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://amdflaws.com/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://blog.trailofbits.com/2018/03/15/amd-flaws-technical-summary/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://community.amd.com/community/amd-corporate/blog/2018/03/21/initial-amd-technical-assessment-of-cts-labs-research"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://safefirmware.com/amdflaws_whitepaper.pdf"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}