github - ghsa-4669-vh4j-5743

GHSA-4669-VH4J-5743

Vulnerability from github – Published: 2022-05-13 01:50 – Updated: 2022-05-13 01:50

Details

The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.

Severity ?

7.8 (High)


                  
                    CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2018-18653"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-26T00:29:00Z",
    "severity": "HIGH"
  },
  "details": "The Linux kernel, as used in Ubuntu 18.10 and when booted with UEFI Secure Boot enabled, allows privileged local users to bypass intended Secure Boot restrictions and execute untrusted code by loading arbitrary kernel modules. This occurs because a modified kernel/module.c, in conjunction with certain configuration options, leads to mishandling of the result of signature verification.",
  "id": "GHSA-4669-vh4j-5743",
  "modified": "2022-05-13T01:50:44Z",
  "published": "2022-05-13T01:50:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18653"
    },
    {
      "type": "WEB",
      "url": "https://launchpad.net/bugs/1798863"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3832-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3835-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-18653 (GCVE-0-2018-18653)

Vulnerability from cvelistv5 – Published: 2018-10-26 00:00 – Updated: 2024-08-05 11:16

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://launchpad.net/bugs/1798863	x_refsource_MISC
	https://usn.ubuntu.com/3835-1/	vendor-advisoryx_refsource_UBUNTU
	https://usn.ubuntu.com/3832-1/	vendor-advisoryx_refsource_UBUNTU

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-05T11:16:00.182Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
            "tags": [
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              "x_transferred"
            ],
            "url": "https://launchpad.net/bugs/1798863"
          },
          {
            "name": "USN-3835-1",
            "tags": [
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            ],
            "url": "https://usn.ubuntu.com/3835-1/"
          },
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            "tags": [
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              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3832-1/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "versions": [
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        }
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                      "version": {
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                      }
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  "cveMetadata": {
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    "datePublished": "2018-10-26T00:00:00",
    "dateReserved": "2018-10-25T00:00:00",
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  },
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}

Sightings

Author	Source	Type	Date

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-4669-VH4J-5743

CVE-2018-18653 (GCVE-0-2018-18653)

Tags

Sightings

Nomenclature