Vulnerability-Lookup

FKIE_CVE-2022-49178

Vulnerability from fkie_nvd - Published: 2025-02-26 07:00 - Updated: 2026-08-04 10:17

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: memstick/mspro_block: fix handling of read-only devices Use set_disk_ro to propagate the read-only state to the block layer instead of checking for it in ->open and leaking a reference in case of a read-only device.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/057b53c4f87690d626203acef8b63d52a9bf2f43	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6a0725b9d78ff6efdc95a37e4f05072e79c63918	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/6dab421bfe06a59bf8f212a72e34673e8acf2018	Patch

Impacted products

	Vendor	Product	Version
	linux	linux_kernel	*
	linux	linux_kernel	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/memstick/core/mspro_block.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "057b53c4f87690d626203acef8b63d52a9bf2f43",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            },
            {
              "lessThan": "6a0725b9d78ff6efdc95a37e4f05072e79c63918",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            },
            {
              "lessThan": "6dab421bfe06a59bf8f212a72e34673e8acf2018",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/memstick/core/mspro_block.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "18F5AF68-F1E7-4C3F-8521-ECDD471EAC43",
              "versionEndExcluding": "5.16.19",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF",
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            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick/mspro_block: fix handling of read-only devices\n\nUse set_disk_ro to propagate the read-only state to the block layer\ninstead of checking for it in -\u003eopen and leaking a reference in case\nof a read-only device."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: memstick/mspro_block: se corrige la gesti\u00f3n de dispositivos de solo lectura. Use set_disk_ro para propagar el estado de solo lectura a la capa de bloque en lugar de verificarlo en -\u0026gt;open y filtrar una referencia en el caso de un dispositivo de solo lectura."
    }
  ],
  "id": "CVE-2022-49178",
  "lastModified": "2026-08-04T10:17:38.113",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "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",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-02-26T07:00:54.947",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/057b53c4f87690d626203acef8b63d52a9bf2f43"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6a0725b9d78ff6efdc95a37e4f05072e79c63918"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/6dab421bfe06a59bf8f212a72e34673e8acf2018"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2022-49178 (GCVE-0-2022-49178)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:55 – Updated: 2026-08-05 08:54

Title

memstick/mspro_block: fix handling of read-only devices

Summary

Severity

7.8 (High)


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

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/057b53c4f87690d62…
https://git.kernel.org/stable/c/6a0725b9d78ff6efd…
https://git.kernel.org/stable/c/6dab421bfe06a59bf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: baf8532a147d5b76681ce040e2c8f25a3f0e718d , < 057b53c4f87690d626203acef8b63d52a9bf2f43 (git) Affected: baf8532a147d5b76681ce040e2c8f25a3f0e718d , < 6a0725b9d78ff6efdc95a37e4f05072e79c63918 (git) Affected: baf8532a147d5b76681ce040e2c8f25a3f0e718d , < 6dab421bfe06a59bf8f212a72e34673e8acf2018 (git)
Linux	Linux	Affected: 2.6.25 Unaffected: 0 , < 2.6.25 (semver) Unaffected: 5.16.19 , ≤ 5.16.* (semver) Unaffected: 5.17.2 , ≤ 5.17.* (semver) Unaffected: 5.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/memstick/core/mspro_block.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "057b53c4f87690d626203acef8b63d52a9bf2f43",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            },
            {
              "lessThan": "6a0725b9d78ff6efdc95a37e4f05072e79c63918",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            },
            {
              "lessThan": "6dab421bfe06a59bf8f212a72e34673e8acf2018",
              "status": "affected",
              "version": "baf8532a147d5b76681ce040e2c8f25a3f0e718d",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/memstick/core/mspro_block.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.16.*",
              "status": "unaffected",
              "version": "5.16.19",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.17.*",
              "status": "unaffected",
              "version": "5.17.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "5.17.2",
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                },
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick/mspro_block: fix handling of read-only devices\n\nUse set_disk_ro to propagate the read-only state to the block layer\ninstead of checking for it in -\u003eopen and leaking a reference in case\nof a read-only device."
        }
      ],
      "metrics": [
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            "baseSeverity": "HIGH",
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            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached via open() on the local block device (/dev/mspblk*), not via network packets or by crafting USB/MemoryStick hardware descriptors as the attack itself.\nAC:L - Each write-open of a present read-only mspro_block device reliably leaks a usage_count reference with no race or nondeterministic condition; overflowing the counter and triggering the subsequent UAF is fully under attacker control via a tight open loop.\nPR:L - Exploitation needs only the ability to open the mspblk block device (typical disk-group or equivalent local access), not real root/CAP_SYS_ADMIN in the init namespace.\nUI:N - The attacker triggers the flaw themselves by opening the device for write; no separate victim action is required once a write-protected MemoryStick Pro volume is present.\nS:U - Impact stays within the kernel\u2019s own authority (local memory corruption / DoS); there is no VM, IOMMU, or other security-boundary escape.\nC:H - After usage_count wraps, open/close frees mspro_block_data while memstick drvdata and the live gendisk still reference it, yielding a heap UAF that can be turned into an arbitrary read primitive.\nI:H - The same UAF enables heap spraying and control of the freed object, providing an arbitrary write / control-flow hijack path in the kernel.\nA:H - The UAF and related use of freed msb state can oops/panic the kernel; even without overflow, leaked references prevent cleanup on card removal and enable resource-exhaustion DoS."
            }
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        {
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    "datePublished": "2025-02-26T01:55:31.574Z",
    "dateReserved": "2025-02-26T01:49:39.281Z",
    "dateUpdated": "2026-08-05T08:54:17.694Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.