CVE-2021-47602
mac80211: track only QoS data frames for admission control
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
In the Linux kernel, the following vulnerability has been resolved:
mac80211: track only QoS data frames for admission control
For admission control, obviously all of that only works for
QoS data frames, otherwise we cannot even access the QoS
field in the header.
Syzbot reported (see below) an uninitialized value here due
to a status of a non-QoS nullfunc packet, which isn't even
long enough to contain the QoS header.
Fix this to only do anything for QoS data packets.
En el kernel de Linux, se resolvió la siguiente vulnerabilidad: mac80211: rastrea solo frameworks de datos QoS para control de admisión. Para el control de admisión, obviamente todo eso solo funciona para frameworks de datos QoS; de lo contrario, ni siquiera podemos acceder al campo QoS en el encabezado. Syzbot informó (ver más abajo) un valor no inicializado aquí debido al estado de un paquete nullfunc sin QoS, que ni siquiera es lo suficientemente largo para contener el encabezado de QoS. Solucione este problema para hacer algo únicamente con los paquetes de datos QoS.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2024-05-24 CVE Reserved
- 2024-06-19 CVE Published
- 2024-11-01 EPSS Updated
- 2024-11-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/02219b3abca59fca81711bfe7ee78df7abad97ce | Vuln. Introduced |
| URL | Date | SRC |
|---|
| 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" | >= 3.19 < 4.19.222 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 4.19.222" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 5.4.168 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.4.168" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 5.10.88 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.10.88" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 5.15.11 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.15.11" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.19 < 5.16 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.19 < 5.16" | en |
Affected
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