Vulnerability-Lookup

GHSA-GRWP-8243-XPJH

Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2025-04-30 15:30

Details

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

mac80211: fix skb length check in ieee80211_scan_rx()

Replace hard-coded compile-time constants for header length check with dynamic determination based on the frame type. Otherwise, we hit a validation WARN_ON in cfg80211 later.

[style fixes, reword commit message]

Severity ?

7.8 (High)


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

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  "aliases": [
    "CVE-2021-47251"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
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    "severity": "HIGH"
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  "id": "GHSA-grwp-8243-xpjh",
  "modified": "2025-04-30T15:30:43Z",
  "published": "2024-05-21T15:31:40Z",
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}

CVE-2021-47251 (GCVE-0-2021-47251)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2025-05-04 07:07

Title

mac80211: fix skb length check in ieee80211_scan_rx()

Summary

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix skb length check in ieee80211_scan_rx() Replace hard-coded compile-time constants for header length check with dynamic determination based on the frame type. Otherwise, we hit a validation WARN_ON in cfg80211 later. [style fixes, reword commit message]

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/5a1cd67a801cf5ef9…
	https://git.kernel.org/stable/c/d1b949c70206178b1…
	https://git.kernel.org/stable/c/e298aa358f0ca6584…

Impacted products

Vendor

Product

Version

Linux

Affected: cd418ba63f0c2f6157f35a41c9accc6ecb52590a , < 5a1cd67a801cf5ef989c4783e07b86a25b143126 (git)
Affected: cd418ba63f0c2f6157f35a41c9accc6ecb52590a , < d1b949c70206178b12027f66edc088d40375b5cb (git)
Affected: cd418ba63f0c2f6157f35a41c9accc6ecb52590a , < e298aa358f0ca658406d524b6639fe389cb6e11e (git)

Linux

Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.46 , ≤ 5.10.* (semver)
Unaffected: 5.12.13 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)

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JSON

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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-GRWP-8243-XPJH

CVE-2021-47251 (GCVE-0-2021-47251)

Tags

Sightings

Nomenclature