CVEvulnerability

CVE-2022-42464

7.8 HIGH Published 2022-10-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-10-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-276

Description

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.

Affected configurations

• openharmony openharmony (>= 3.0 <= 3.0.6) • openharmony openharmony (>= 3.1 <= 3.1.2)

Related

Weakness · CWE (1)

  • CWE-276 Incorrect Default Permissions weakness

References