// For flags

CVE-2021-47286

bus: mhi: core: Validate channel ID when processing command completions

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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

bus: mhi: core: Validate channel ID when processing command completions

MHI reads the channel ID from the event ring element sent by the
device which can be any value between 0 and 255. In order to
prevent any out of bound accesses, add a check against the maximum
number of channels supported by the controller and those channels
not configured yet so as to skip processing of that event ring
element.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bus: mhi: core: valida el ID del canal al procesar la finalización del comando MHI lee el ID del canal del elemento del anillo de eventos enviado por el dispositivo, que puede tener cualquier valor entre 0 y 255. Para evitar accesos fuera de los límites, agregue una verificación del número máximo de canales admitidos por el controlador y aquellos canales que aún no están configurados para omitir el procesamiento de ese elemento del anillo de eventos.

*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
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-21 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
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"
 >= 5.7 < 5.10.54
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.7 < 5.10.54"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.7 < 5.13.6
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.7 < 5.13.6"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.7 < 5.14
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.7 < 5.14"
en
Affected