CVE-2021-47251
"Linux Kernel mac80211 Invalid Header Length Leak"
Description
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]
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 30, 2025, 3:18 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- There is no known solution at this time.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47251.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47251 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47251
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47251 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47251 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 30, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-1284 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10 up to (excluding) 5.10.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.12.13 Added Reference Type CVE: https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126 Added Reference https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb Added Reference https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added Description 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] Added Reference kernel.org https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e [No types assigned]