Vulnerability in Openharmony

CVE-2022-42464

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (8.2th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 8th percentile — 8.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-42464: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

  • Openharmony — versions OpenHarmony-v3.1.x-Release, OpenHarmony-v3.0.x-LTS

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-42464?
CVE-2022-42464 is a medium-severity vulnerability in Openharmony, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2022-10-14.
How severe is CVE-2022-42464?
Medium severity. CVSS v3 base score is 6.7 out of 10.