Zero-day vulnerability in Google Android

Use-after-free
CVE-2021-28663

Vulnerability details

Advisory: SB2021052006 - Multiple vulnerabilities in Google Android

Vulnerable component: Google Android

CVE-ID: CVE-2021-28663

CVSSv3 score: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-416 - Use After Free

Description:

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the Arm Mali GPU kernel driver. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0. A local application can trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://source.android.com/security/bulletin/2021-05-01