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 ...

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.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory gitee.com
Affected: OpenHarmony OpenHarmony
Published at:
Updated at:

References

Link Tags
https://gitee.com/openharmony/security/blob/master/en/security-disclosure/2022/2022-10.md vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-42464?
CVE-2022-42464 has been scored as a medium severity vulnerability.
How to fix CVE-2022-42464?
To fix CVE-2022-42464, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-42464 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-42464 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-42464?
CVE-2022-42464 affects OpenHarmony OpenHarmony.
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