CVE-2021-39714

HIGH

Android - Use-After-Free via Integer Overflow in ion_buffer_kmap_get

Title source: llm

Description

In ion_buffer_kmap_get of ion.c, there is a possible use-after-free due to an integer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-205573273References: Upstream kernel

References (1)

Core 1

Core References

Patch, Vendor Advisory x_refsource_misc

https://source.android.com/security/bulletin/pixel/2022-08-01

Scores

CVSS v3 7.8

EPSS 0.0022

EPSS Percentile 11.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-190 CWE-416

Status published

Products (1)

google/android

Published Mar 16, 2022

Tracked Since Feb 18, 2026