CVE-2023-21216

Description

In PMRChangeSparseMemOSMem of physmem_osmem_linux.c, there is a possible arbitrary code execution due to a use after free. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.12%
Vendor Advisory android.com
Affected: Google Android
Published at:
Updated at:

References

Link Tags
https://source.android.com/security/bulletin/2023-12-01 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-21216?
CVE-2023-21216 has been scored as a critical severity vulnerability.
How to fix CVE-2023-21216?
To fix CVE-2023-21216, 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-2023-21216 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-21216 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-2023-21216?
CVE-2023-21216 affects Google Android.
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