// For flags

CVE-2022-42464

Kernel memory pool override in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in furth ...

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

OpenHarmony-v3.1.2 and prior versions, 3.0.6 and prior versions have a Kernel memory pool override vulnerability in /dev/mmz_userdev device driver. The impact depends on the privileges of the attacker. The unprivileged process run on the device could disclose sensitive information including kernel pointer, which could be used in further attacks. The processes with system user UID run on the device would be able to mmap memory pools used by kernel and override them which could be used to gain kernel code execution on the device, gain root privileges, or cause device reboot.

OpenHarmony versiones v3.1.2 y versiones anteriores, 3.0.6 y versiones anteriores, presentan una vulnerabilidad de anulación del pool de memoria del Kernel en el controlador de dispositivo /dev/mmz_userdev. El impacto depende de los privilegios del atacante. El proceso no privilegiado que sea ejecutado en el dispositivo podría divulgar información confidencial, incluyendo el puntero del kernel, que podría ser usado en otros ataques. Los procesos con UID de usuario del sistema que es ejecutado en el dispositivo podrían mmap pools de memoria usados por el kernel y anularlos, lo que podría usarse para obtener una ejecución de código del kernel en el dispositivo, obtener privilegios de root o causar el reinicio del dispositivo

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-08 CVE Reserved
  • 2022-10-14 CVE Published
  • 2024-05-03 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-276: Incorrect Default Permissions
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Openharmony
Search vendor "Openharmony"
 Openharmony
Search vendor "Openharmony" for product "Openharmony"
 >= 3.0 <= 3.0.6
Search vendor "Openharmony" for product "Openharmony" and version " >= 3.0 <= 3.0.6"
-
Affected
Openharmony
Search vendor "Openharmony"
 Openharmony
Search vendor "Openharmony" for product "Openharmony"
 >= 3.1 <= 3.1.2
Search vendor "Openharmony" for product "Openharmony" and version " >= 3.1 <= 3.1.2"
-
Affected