github - ghsa-5rp3-9frh-m3wx

GHSA-5RP3-9FRH-M3WX

Vulnerability from github – Published: 2022-05-24 19:03 – Updated: 2022-05-24 19:03

Details

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.

Severity ?

6.7 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3543"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-01T14:15:00Z",
    "severity": "HIGH"
  },
  "details": "A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.",
  "id": "GHSA-5rp3-9frh-m3wx",
  "modified": "2022-05-24T19:03:43Z",
  "published": "2022-05-24T19:03:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3543"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1953022"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/lkml/20210429165941.27020-1-andraprs@amazon.com"
    },
    {
      "type": "WEB",
      "url": "https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs@amazon.com"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-3543 (GCVE-0-2021-3543)

Vulnerability from cvelistv5 – Published: 2021-06-01 13:20 – Updated: 2024-08-03 17:01

Summary

Severity ?

No CVSS data available.

CWE

CWE-416 - (CWE-416|CWE-476)

Assigner

redhat

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=1953022	x_refsource_MISC
	https://lore.kernel.org/lkml/20210429165941.27020…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	kernel	Affected: kernel 4.18.0

Show details on NVD website

JSON

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            "url": "https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs%40amazon.com/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "kernel",
          "vendor": "n/a",
          "versions": [
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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-5RP3-9FRH-M3WX

CVE-2021-3543 (GCVE-0-2021-3543)

Tags

Sightings

Nomenclature