github - ghsa-6qx7-m4qh-j7cp

GHSA-6QX7-M4QH-J7CP

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2024-07-03 18:42

Details

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

virtio-net: fix pages leaking when building skb in big mode

We try to use build_skb() if we had sufficient tailroom. But we forget to release the unused pages chained via private in big mode which will leak pages. Fixing this by release the pages after building the skb in big mode.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47367"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T15:15:22Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: fix pages leaking when building skb in big mode\n\nWe try to use build_skb() if we had sufficient tailroom. But we forget\nto release the unused pages chained via private in big mode which will\nleak pages. Fixing this by release the pages after building the skb in\nbig mode.",
  "id": "GHSA-6qx7-m4qh-j7cp",
  "modified": "2024-07-03T18:42:50Z",
  "published": "2024-05-21T15:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47367"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67ba"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-47367 (GCVE-0-2021-47367)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2025-05-04 07:09

Summary

In the Linux kernel, the following vulnerability has been resolved: virtio-net: fix pages leaking when building skb in big mode We try to use build_skb() if we had sufficient tailroom. But we forget to release the unused pages chained via private in big mode which will leak pages. Fixing this by release the pages after building the skb in big mode.

Severity ?

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f020bb63b5d2e5576…
	https://git.kernel.org/stable/c/afd92d82c9d715fb9…

Impacted products

Vendor

Product

Version

Linux

Affected: fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 , < f020bb63b5d2e5576acadd10e158fe3b04af67ba (git)
Affected: fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 , < afd92d82c9d715fb97565408755acad81573591a (git)

Linux

Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.14.9 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6QX7-M4QH-J7CP

CVE-2021-47367 (GCVE-0-2021-47367)

Tags

Sightings

Nomenclature