CVE-2023-21216
Last modified
CVE-2023-21216 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 0.40% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Android | All versions |
References
- https://source.android.com/security/bulletin/2023-12-01Vendor Advisory
- https://source.android.com/security/bulletin/2023-12-01Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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