Vulnerability-Lookup

GHSA-4MGJ-F599-W3J8

Vulnerability from github – Published: 2024-10-29 03:31 – Updated: 2024-10-30 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ublk: don't allow user copy for unprivileged device

UBLK_F_USER_COPY requires userspace to call write() on ublk char device for filling request buffer, and unprivileged device can't be trusted.

So don't allow user copy for unprivileged device.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50080"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-29T01:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nublk: don\u0027t allow user copy for unprivileged device\n\nUBLK_F_USER_COPY requires userspace to call write() on ublk char\ndevice for filling request buffer, and unprivileged device can\u0027t\nbe trusted.\n\nSo don\u0027t allow user copy for unprivileged device.",
  "id": "GHSA-4mgj-f599-w3j8",
  "modified": "2024-10-30T18:30:48Z",
  "published": "2024-10-29T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50080"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6414ab5c9c9c068eca6dc4fd3a036bc4b83164dc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f3d5686a2409877c5e8e2540774d24ed2b4a4ce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-50080 (GCVE-0-2024-50080)

Vulnerability from cvelistv5 – Published: 2024-10-29 00:50 – Updated: 2026-05-11 20:45

Title

ublk: don't allow user copy for unprivileged device

Summary

In the Linux kernel, the following vulnerability has been resolved: ublk: don't allow user copy for unprivileged device UBLK_F_USER_COPY requires userspace to call write() on ublk char device for filling request buffer, and unprivileged device can't be trusted. So don't allow user copy for unprivileged device.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-01 20:23 UTC

CWE

CWE-noinfo Not enough information

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7064 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/6414ab5c9c9c068ec…
https://git.kernel.org/stable/c/8f3d5686a2409877c…
https://git.kernel.org/stable/c/42aafd8b48adac1c3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 1172d5b8beca6b899deb9f7f2850e7e47ec16198 , < 6414ab5c9c9c068eca6dc4fd3a036bc4b83164dc (git) Affected: 1172d5b8beca6b899deb9f7f2850e7e47ec16198 , < 8f3d5686a2409877c5e8e2540774d24ed2b4a4ce (git) Affected: 1172d5b8beca6b899deb9f7f2850e7e47ec16198 , < 42aafd8b48adac1c3b20fe5892b1b91b80c1a1e6 (git)
Linux	Linux	Affected: 6.5 Unaffected: 0 , < 6.5 (semver) Unaffected: 6.6.58 , ≤ 6.6.* (semver) Unaffected: 6.11.5 , ≤ 6.11.* (semver) Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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            }
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                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:23:18.941613Z",
                "version": "2.0.3"
              },
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            }
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          "dateUpdated": "2025-10-01T20:27:20.689Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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      }
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          "programFiles": [
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          ],
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          ]
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          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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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.
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.

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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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