Vulnerability identifier: #VU53390

Vulnerability risk: High

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-28664

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Google Android
Operating systems & Components / Operating system

Vendor: Google

Description

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

The vulnerability exists due to a boundary error within the Arm Mali GPU kernel driver. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r8p0 through r30p0. A local application can trigger memory corruption and execute arbitrary code on the system with elevated privileges.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 11 - 11 2021-05-01, 10 - 10 2021-05-01, 9.0 - 9.0 2021-05-01, 8.1 - 8.1 2021-05-01

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External links
http://source.android.com/security/bulletin/2021-05-01

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.