CVE-2021-39803

Published: Apr 12, 2022Modified: Jun 17, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

In ~Impl of C2AllocatorIon.cpp, there is a possible out of bounds read due to a use after free. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-193790350

Affected (4)

Products: Google: Android

1 product

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Google Android	Version 10.0
Google Android	Version 11.0
Google Android	Version 12.0
Google Android	Version 12.1

Related CWEs

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://source.android.com/security/bulletin/2022-04-01

Source: security@android.com

PatchVendor Advisory

https://source.android.com/security/bulletin/2022-04-01

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.