Vulnerability identifier: #VU59322

Vulnerability risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39634

CWE-ID: CWE-362

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 race condition in the OS kernel. A local application can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 12 - 12 2022-01-01, 11 - 11 2022-01-01, 10 - 10 2022-01-01, 9 2021-09-01 - 9.0 2021-06-05

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External links
http://source.android.com/security/bulletin/2022-01-01#2022-01-05-security-patch-level-vulnerability-details
http://android.googlesource.com/kernel/common/+/f8d4f44df056c5b504b0d49683fb7279218fd207

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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?

No. We are not aware of malware exploiting this vulnerability.