Vulnerability-Lookup

GHSA-PWXX-FX4J-FFV3

Vulnerability from github – Published: 2024-04-02 09:30 – Updated: 2024-10-31 18:31

Details

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

fs/ntfs3: Fix an NULL dereference bug

The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.

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-2023-52631"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-02T07:15:40Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix an NULL dereference bug\n\nThe issue here is when this is called from ntfs_load_attr_list().  The\n\"size\" comes from le32_to_cpu(attr-\u003eres.data_size) so it can\u0027t overflow\non a 64bit systems but on 32bit systems the \"+ 1023\" can overflow and\nthe result is zero.  This means that the kmalloc will succeed by\nreturning the ZERO_SIZE_PTR and then the memcpy() will crash with an\nOops on the next line.",
  "id": "GHSA-pwxx-fx4j-ffv3",
  "modified": "2024-10-31T18:31:16Z",
  "published": "2024-04-02T09:30:40Z",
  "references": [
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  "severity": [
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      "type": "CVSS_V3"
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}

CVE-2023-52631 (GCVE-0-2023-52631)

Vulnerability from cvelistv5 – Published: 2024-04-02 06:22 – Updated: 2026-05-11 19:30

Title

fs/ntfs3: Fix an NULL dereference bug

Summary

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.

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 2024-04-02 15:17 UTC

CWE

CWE-476 - NULL Pointer Dereference

Assigner

Linux mitre root Scorecard

References

5 references

URL	Tags
https://git.kernel.org/stable/c/ae4acad41b0f93f1c…
https://git.kernel.org/stable/c/ec1bedd797588fe38…
https://git.kernel.org/stable/c/fb7bcd1722bc9bc55…
https://git.kernel.org/stable/c/686820fe141ea0220…
https://git.kernel.org/stable/c/b2dd7b953c25ffd59…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: be71b5cba2e6485e8959da7a9f9a44461a1bb074 , < ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b (git) Affected: be71b5cba2e6485e8959da7a9f9a44461a1bb074 , < ec1bedd797588fe38fc11cba26d77bb1d9b194c6 (git) Affected: be71b5cba2e6485e8959da7a9f9a44461a1bb074 , < fb7bcd1722bc9bc55160378f5f99c01198fd14a7 (git) Affected: be71b5cba2e6485e8959da7a9f9a44461a1bb074 , < 686820fe141ea0220fc6fdfc7e5694f915cf64b2 (git) Affected: be71b5cba2e6485e8959da7a9f9a44461a1bb074 , < b2dd7b953c25ffd5912dda17e980e7168bebcf6c (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 5.15.149 , ≤ 5.15.* (semver) Unaffected: 6.1.78 , ≤ 6.1.* (semver) Unaffected: 6.6.17 , ≤ 6.6.* (semver) Unaffected: 6.7.5 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

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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 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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GHSA-PWXX-FX4J-FFV3

CVE-2023-52631 (GCVE-0-2023-52631)

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Nomenclature

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