Vulnerability identifier: #VU47427

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-2020-0421

CWE-ID: CWE-190

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 device.

The vulnerability exists due to integer overflow in Android Framework when encoding errors. A local application can trigger integer overflow and execute arbitrary code on the device with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Google Android: 11, 10, 9.0, 8.0 - 8.1

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External links
http://source.android.com/security/bulletin/2020-10-01
http://android.googlesource.com/platform/system/core/+/bad50ed24f9d48d001fcedd332d59f162dc3432d

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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.