Vulnerability-Lookup

GHSA-XPF2-4V7H-FPCM

Vulnerability from github – Published: 2023-05-09 21:30 – Updated: 2024-04-04 03:57

Details

Failure to unmap certain SysHub mappings in error paths of the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious bootloader to exhaust the SysHub resources resulting in a potential denial of service.

Severity

7.5 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-46755"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-09T20:15:12Z",
    "severity": "HIGH"
  },
  "details": "Failure to unmap certain SysHub mappings in\nerror paths of the ASP (AMD Secure Processor) bootloader may allow an attacker\nwith a malicious bootloader to exhaust the SysHub resources resulting in a\npotential denial of service.\n\n\n\n\n",
  "id": "GHSA-xpf2-4v7h-fpcm",
  "modified": "2024-04-04T03:57:44Z",
  "published": "2023-05-09T21:30:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46755"
    },
    {
      "type": "WEB",
      "url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-46755 (GCVE-0-2021-46755)

Vulnerability from cvelistv5 – Published: 2023-05-09 19:00 – Updated: 2025-01-28 15:39

Summary

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-28 15:39 UTC

CWE

CWE-noinfo Not enough information

Assigner

AMD mitre root

References

1 reference

URL	Tags
https://www.amd.com/en/corporate/product-security…	vendor-advisory

Impacted products

9 products

Vendor	Product	Version
AMD	Ryzen™ 3000 Series Desktop Processors “Matisse” AM4	Affected: various
AMD	AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4	Affected: various
AMD	Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics “Cezanne” AM4	Affected: various
AMD	3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT	Affected: various
AMD	Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS	Affected: various
AMD	Ryzen™ Threadripper™ PRO Processors “Chagall” WS	Affected: various
AMD	Ryzen™ 3000 Series Mobile Processors with Radeon™ Graphics “Renoir”	Affected: various
AMD	Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne”	Affected: various
AMD	Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Cezanne”	Affected: various

Date Public

2023-05-09 16:30

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
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Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-XPF2-4V7H-FPCM

CVE-2021-46755 (GCVE-0-2021-46755)

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