github - ghsa-wg55-v4qx-w8g3

ghsa-wg55-v4qx-w8g3

Vulnerability from github

Published

2022-05-14 02:03

Modified

2022-05-14 02:03

Severity ?

5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-12232"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-12T12:29:00Z",
    "severity": "HIGH"
  },
  "details": "In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat\u0027s execution, leading to a NULL pointer dereference and system crash.",
  "id": "GHSA-wg55-v4qx-w8g3",
  "modified": "2022-05-14T02:03:05Z",
  "published": "2022-05-14T02:03:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12232"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2948"
    },
    {
      "type": "WEB",
      "url": "https://lkml.org/lkml/2018/6/5/14"
    },
    {
      "type": "WEB",
      "url": "https://patchwork.ozlabs.org/patch/926519"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3752-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3752-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3752-3"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104453"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2018-12232

Vulnerability from cvelistv5

Published

2018-06-12 12:00

Modified

2024-08-05 08:30

Severity ?

Summary

References

▼	URL	Tags
	https://usn.ubuntu.com/3752-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3752-3/	vendor-advisory, x_refsource_UBUNTU
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6d8c50dcb029872b298eea68cc6209c866fd3e14	x_refsource_MISC
	https://patchwork.ozlabs.org/patch/926519/	x_refsource_MISC
	https://access.redhat.com/errata/RHSA-2018:2948	vendor-advisory, x_refsource_REDHAT
	https://lkml.org/lkml/2018/6/5/14	x_refsource_MISC
	http://www.securityfocus.com/bid/104453	vdb-entry, x_refsource_BID
	https://usn.ubuntu.com/3752-1/	vendor-advisory, x_refsource_UBUNTU
	https://github.com/torvalds/linux/commit/6d8c50dcb029872b298eea68cc6209c866fd3e14	x_refsource_MISC

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

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{
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  "dataVersion": "5.1"
}

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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