CVE-2021-47251

mac80211: fix skb length check in ieee80211_scan_rx()

Severity Score

"-"

*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

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]

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mac80211: corrige la verificación de longitud de skb en ieee80211_scan_rx() Reemplace las constantes de tiempo de compilación codificadas para la verificación de la longitud del encabezado con determinación dinámica basada en el tipo de trama. De lo contrario, obtendremos un WARN_ON de validación en cfg80211 más adelante. [correcciones de estilo, reformular mensaje de confirmación]

*Credits: N/A

CVSS Scores

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-04-10 CVE Reserved
2024-05-21 CVE Published
2024-05-22 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (4)

URL	Tag	Source
https://git.kernel.org/stable/c/cd418ba63f0c2f6157f35a41c9accc6ecb52590a	Vuln. Introduced

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126	2021-06-23
https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb	2021-06-23
https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e	2021-05-31

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.10.46 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.10.46"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.12.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.12.13"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 5.10 < 5.13 Search vendor "Linux" for product "Linux Kernel" and version " >= 5.10 < 5.13"		en		Affected