github - ghsa-p9vw-f8rg-c624

GHSA-P9VW-F8RG-C624

Vulnerability from github – Published: 2025-01-21 15:31 – Updated: 2025-02-28 21:32

Details

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

exfat: fix the new buffer was not zeroed before writing

Before writing, if a buffer_head marked as new, its data must be zeroed, otherwise uninitialized data in the page cache will be written.

So this commit uses folio_zero_new_buffers() to zero the new buffers before ->write_end().

Severity ?

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2024-57943"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-824"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-01-21T13:15:08Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nexfat: fix the new buffer was not zeroed before writing\n\nBefore writing, if a buffer_head marked as new, its data must\nbe zeroed, otherwise uninitialized data in the page cache will\nbe written.\n\nSo this commit uses folio_zero_new_buffers() to zero the new\nbuffers before -\u003ewrite_end().",
  "id": "GHSA-p9vw-f8rg-c624",
  "modified": "2025-02-28T21:32:14Z",
  "published": "2025-01-21T15:31:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-57943"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/942c6f91ab8d82a41650e717940b4e577173762f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/98e2fb26d1a9eafe79f46d15d54e68e014d81d8c"
    }
  ],
  "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-2024-57943 (GCVE-0-2024-57943)

Vulnerability from cvelistv5 – Published: 2025-01-21 12:18 – Updated: 2025-10-01 19:57

Summary

In the Linux kernel, the following vulnerability has been resolved: exfat: fix the new buffer was not zeroed before writing Before writing, if a buffer_head marked as new, its data must be zeroed, otherwise uninitialized data in the page cache will be written. So this commit uses folio_zero_new_buffers() to zero the new buffers before ->write_end().

Severity ?

7.8 (High)


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

CWE

CWE-824 - Access of Uninitialized Pointer

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/942c6f91ab8d82a41…
	https://git.kernel.org/stable/c/98e2fb26d1a9eafe7…

Impacted products

Vendor

Product

Version

Linux

Affected: 6630ea49103c3d45461e29b0f6eb0ce750aeb8f5 , < 942c6f91ab8d82a41650e717940b4e577173762f (git)
Affected: 6630ea49103c3d45461e29b0f6eb0ce750aeb8f5 , < 98e2fb26d1a9eafe79f46d15d54e68e014d81d8c (git)

Linux

Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.10 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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        "metrics": [
          {
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              "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",
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            }
          },
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            "other": {
              "content": {
                "id": "CVE-2024-57943",
                "options": [
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                    "Exploitation": "none"
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                "timestamp": "2025-10-01T19:52:43.533484Z",
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          "programFiles": [
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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-P9VW-F8RG-C624

CVE-2024-57943 (GCVE-0-2024-57943)

Tags

Sightings

Nomenclature