#VU67870 Permissions, Privileges, and Access Controls in Google Android - CVE-2022-20409

Vulnerability identifier: #VU67870

Vulnerability risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-20409

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: Yes

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 missing checks when working with concurrent tasks in io_uring implementation. A local application can escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: before 10, 11, 12L, 12, 13, 10

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External links
https://source.android.com/docs/security/bulletin/2022-10-01#2022-10-05-security-patch-level-vulnerability-details
https://android.googlesource.com/kernel/common/+/0380da7fd63ac93caf96a75d1b31e388d3c754e9

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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. However, proof of concept for this vulnerability is available.