github - ghsa-4h2m-3c33-9fw3

ghsa-4h2m-3c33-9fw3

Vulnerability from github

Published

2024-06-19 15:30

Modified

2024-10-31 15:30

Severity ?

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

Details

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

vduse: fix memory corruption in vduse_dev_ioctl()

The "config.offset" comes from the user. There needs to a check to prevent it being out of bounds. The "config.offset" and "dev->config_size" variables are both type u32. So if the offset if out of bounds then the "dev->config_size - config.offset" subtraction results in a very high u32 value. The out of bounds offset can result in memory corruption.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47605"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T15:15:55Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: fix memory corruption in vduse_dev_ioctl()\n\nThe \"config.offset\" comes from the user.  There needs to a check to\nprevent it being out of bounds.  The \"config.offset\" and\n\"dev-\u003econfig_size\" variables are both type u32.  So if the offset if\nout of bounds then the \"dev-\u003econfig_size - config.offset\" subtraction\nresults in a very high u32 value.  The out of bounds offset can result\nin memory corruption.",
  "id": "GHSA-4h2m-3c33-9fw3",
  "modified": "2024-10-31T15:30:58Z",
  "published": "2024-06-19T15:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47605"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6c67560b4341914bec32ec536e931c22062af65"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff9f9c6e74848170fcb45c8403c80d661484c8c9"
    }
  ],
  "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-2021-47605

Vulnerability from cvelistv5

Published

2024-06-19 14:54

Modified

2024-11-04 12:09

Severity ?

Summary

vduse: fix memory corruption in vduse_dev_ioctl()

References

▼	URL	Tags
	https://git.kernel.org/stable/c/e6c67560b4341914bec32ec536e931c22062af65
	https://git.kernel.org/stable/c/ff9f9c6e74848170fcb45c8403c80d661484c8c9

Impacted products

Vendor

Product

Version

▼

Linux

Version: c8a6153b6c59
Version: c8a6153b6c59

Linux

Version: 5.15

Show details on NVD website

JSON

To clipboard

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    "dateReserved": "2024-05-24T15:11:00.737Z",
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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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