Vulnerability identifier: #VU64880

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-39714

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Pixel
Mobile applications / Mobile firmware & hardware

Vendor:

Description

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

The vulnerability exists due to integer overflow within the ion_buffer_kmap_get() function in ion.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://source.android.com/security/bulletin/pixel/2022-03-01

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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?

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