CVE-2021-47257 (GCVE-0-2021-47257)

Vulnerability from cvelistv5 – Published: 2024-05-21 14:19 – Updated: 2026-05-11 13:51
VLAI
Title
net: ieee802154: fix null deref in parse dev addr
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ieee802154: fix null deref in parse dev addr Fix a logic error that could result in a null deref if the user sets the mode incorrectly for the given addr type.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < 1f95741981c899c4724647291fec5faa3c777185 (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < c6998ccfefa652bac3f9b236821e392af43efa1e (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < 5f728ec65485625e30f46e5b4917ff023ad29ea0 (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < d0f47648b87b6d5f204cb7f3cbce6d36dab85a67 (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < c7836de2cadd88bc2f20f2c5a3d4ef4c73aef627 (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < fdd51e34f45311ab6e48d2147cbc2904731b9993 (git)
Affected: a26c5fd7622d4951425131d54a8c99f076fe2068 , < 9fdd04918a452980631ecc499317881c1d120b70 (git)
Create a notification for this product.
Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 4.9.274 , ≤ 4.9.* (semver)
Unaffected: 4.14.238 , ≤ 4.14.* (semver)
Unaffected: 4.19.196 , ≤ 4.19.* (semver)
Unaffected: 5.4.127 , ≤ 5.4.* (semver)
Unaffected: 5.10.45 , ≤ 5.10.* (semver)
Unaffected: 5.12.12 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-06-28T07:49:54+00:00",
      "cve": "CVE-2021-47257",
      "id": "CVE-2021-47257",
      "initial_release_date": "2021-01-01T00:00:00+00:00",
      "product_status:fixed": "150",
      "product_status:known_affected": "28",
      "product_status:known_not_affected": "122",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: ieee802154: fix null deref in parse dev addr",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47257.json",
      "version": "3"
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  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.