Vulnerability-Lookup

GHSA-26FR-8FJ2-MR2R

Vulnerability from github – Published: 2022-10-14 19:00 – Updated: 2022-10-19 12:00

Details

OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot.

Severity

7.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2022-42464"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-276"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-10-14T15:16:00Z",
    "severity": "HIGH"
  },
  "details": "OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot.",
  "id": "GHSA-26fr-8fj2-mr2r",
  "modified": "2022-10-19T12:00:24Z",
  "published": "2022-10-14T19:00:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42464"
    },
    {
      "type": "WEB",
      "url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-42464 (GCVE-0-2022-42464)

Vulnerability from cvelistv5 – Published: 2022-10-14 14:40 – Updated: 2025-05-14 15:11

Title

Kernel memory pool override in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in furth ...

Summary

Severity

6.7 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-14 15:11 UTC

CWE

CWE-276 - Incorrect Default Permissions

Assigner

OpenHarmony mitre root

References

1 reference

URL	Tags
https://gitee.com/openharmony/security/blob/maste…

Impacted products

1 product

Vendor	Product	Version
OpenHarmony	OpenHarmony	Affected: OpenHarmony-v3.1.x-Release , ≤ 3.1.2 (custom) Affected: OpenHarmony-v3.0.x-LTS , ≤ 3.0.6 (custom)

Date Public

2022-10-11 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T13:10:40.920Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-42464",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-14T15:11:17.660462Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-14T15:11:24.640Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "OpenHarmony",
          "vendor": "OpenHarmony",
          "versions": [
            {
              "lessThanOrEqual": "3.1.2",
              "status": "affected",
              "version": "OpenHarmony-v3.1.x-Release",
              "versionType": "custom"
            },
            {
              "lessThanOrEqual": "3.0.6",
              "status": "affected",
              "version": "OpenHarmony-v3.0.x-LTS",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2022-10-11T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-276",
              "description": "CWE-276 Incorrect Default Permissions",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-10-14T00:00:00.000Z",
        "orgId": "0cf5dd6e-1214-4398-a481-30441e48fafd",
        "shortName": "OpenHarmony"
      },
      "references": [
        {
          "url": "https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Kernel memory pool override in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in furth ...",
      "x_ConverterErrors": {
        "TITLE": {
          "error": "TITLE too long. Truncating in v5 record.",
          "message": "Truncated!"
        }
      },
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0cf5dd6e-1214-4398-a481-30441e48fafd",
    "assignerShortName": "OpenHarmony",
    "cveId": "CVE-2022-42464",
    "datePublished": "2022-10-14T14:40:12.042Z",
    "dateReserved": "2022-10-08T00:00:00.000Z",
    "dateUpdated": "2025-05-14T15:11:24.640Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.
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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.