CVE-2023-21253

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-10-06 · updated 2026-06-17
Weakness: CWE-400

Description

In multiple locations, there is a possible way to crash multiple system services due to resource exhaustion. This could lead to local denial of service with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected products

Android: 11.0, 12.0, 12.1, 13.0

References

https://android.googlesource.com/platform/frameworks/base/+/84df68840b6f2407146e722ebd95a7d8bc6e3529
https://android.googlesource.com/platform/tools/apksig/+/039f815895f62c9f8af23df66622b66246f3f61e
https://android.googlesource.com/platform/tools/apksig/+/41d882324288085fd32ae0bb70dc85f5fd0e2be7
https://source.android.com/security/bulletin/2023-10-01
https://android.googlesource.com/platform/frameworks/base/+/84df68840b6f2407146e722ebd95a7d8bc6e3529
https://android.googlesource.com/platform/tools/apksig/+/039f815895f62c9f8af23df66622b66246f3f61e
https://android.googlesource.com/platform/tools/apksig/+/41d882324288085fd32ae0bb70dc85f5fd0e2be7
https://source.android.com/security/bulletin/2023-10-01

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