github - ghsa-pwxx-fx4j-ffv3

ghsa-pwxx-fx4j-ffv3

Vulnerability from github

Published

2024-04-02 09:30

Modified

2024-10-31 18:31

Severity ?

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

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.

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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": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52631"
    },
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      "url": "https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2"
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}

cve-2023-52631

Vulnerability from cvelistv5

Published

2024-04-02 06:22

Modified

2024-11-04 14:50

Severity ?

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

Summary

fs/ntfs3: Fix an NULL dereference bug

References

▼	URL	Tags
	https://git.kernel.org/stable/c/ae4acad41b0f93f1c26cc0fc9135bb79d8282d0b
	https://git.kernel.org/stable/c/ec1bedd797588fe38fc11cba26d77bb1d9b194c6
	https://git.kernel.org/stable/c/fb7bcd1722bc9bc55160378f5f99c01198fd14a7
	https://git.kernel.org/stable/c/686820fe141ea0220fc6fdfc7e5694f915cf64b2
	https://git.kernel.org/stable/c/b2dd7b953c25ffd5912dda17e980e7168bebcf6c

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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