github - ghsa-9fr3-m8v5-v6g9

ghsa-9fr3-m8v5-v6g9

Vulnerability from github

Published

2022-02-10 00:00

Modified

2022-03-30 00:01

Severity ?

8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Details

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated table variable EFI_BOOT_SERVICES. This allows an attacker who is capable of executing code in DXE phase to exploit this vulnerability to escalate privileges to SMM. The attacker can overwrite the LocateProtocol or Freepool memory address location to execute unwanted code.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-41840"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-02-03T02:15:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated table variable EFI_BOOT_SERVICES. This allows an attacker who is capable of executing code in DXE phase to exploit this vulnerability to escalate privileges to SMM. The attacker can overwrite the LocateProtocol or Freepool memory address location to execute unwanted code.",
  "id": "GHSA-9fr3-m8v5-v6g9",
  "modified": "2022-03-30T00:01:49Z",
  "published": "2022-02-10T00:00:59Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41840"
    },
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      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220217-0014"
    },
    {
      "type": "WEB",
      "url": "https://www.insyde.com/security-pledge"
    },
    {
      "type": "WEB",
      "url": "https://www.insyde.com/security-pledge/SA-2022018"
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  "severity": [
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      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
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  ]
}

cve-2021-41840

Vulnerability from cvelistv5

Published

2022-02-03 01:20

Modified

2024-08-04 03:22

Severity ?

Summary

An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.

References

▼	URL	Tags
	https://www.insyde.com/security-pledge	x_refsource_MISC
	https://www.insyde.com/security-pledge/SA-2022018	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-20220217-0014/	x_refsource_CONFIRM
	https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

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