Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openharmony | Openharmony | >= 3.0, <= 3.0.6 |
Related Weaknesses (CWE)
References
- https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2Vendor Advisory
- https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2Vendor Advisory
FAQ
What is CVE-2022-42464?
CVE-2022-42464 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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...
How severe is CVE-2022-42464?
CVE-2022-42464 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-42464?
Check the references section above for vendor advisories and patch information. Affected products include: Openharmony Openharmony.