github - ghsa-4jvh-cf85-8374

ghsa-4jvh-cf85-8374

Vulnerability from github

Published

2024-03-15 21:30

Modified

2024-03-15 21:30

Details

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

neighbour: allow NUD_NOARP entries to be forced GCed

IFF_POINTOPOINT interfaces use NUD_NOARP entries for IPv6. It's possible to fill up the neighbour table with enough entries that it will overflow for valid connections after that.

This behaviour is more prevalent after commit 58956317c8de ("neighbor: Improve garbage collection") is applied, as it prevents removal from entries that are not NUD_FAILED, unless they are more than 5s old.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47109"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-15T21:15:06Z",
    "severity": null
  },
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  "id": "GHSA-4jvh-cf85-8374",
  "modified": "2024-03-15T21:30:43Z",
  "published": "2024-03-15T21:30:43Z",
  "references": [
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      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47109"
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cve-2021-47109

Vulnerability from cvelistv5

Published

2024-03-15 20:14

Modified

2024-11-04 11:59

Severity ?

Summary

neighbour: allow NUD_NOARP entries to be forced GCed

References

▼	URL	Tags
	https://git.kernel.org/stable/c/d99029e6aab62aef0a0251588b2867e77e83b137
	https://git.kernel.org/stable/c/d17d47da59f726dc4c87caebda3a50333d7e2fd3
	https://git.kernel.org/stable/c/ddf088d7aaaaacfc836104f2e632b29b1d383cfc
	https://git.kernel.org/stable/c/7a6b1ab7475fd6478eeaf5c9d1163e7a18125c8f

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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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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