#VU65432 Use-after-free in Chromecast - CVE-2022-20007

Vulnerability identifier: #VU65432

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-20007

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Chromecast
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 use-after-free error in startActivityForAttachedApplicationIfNeeded of RootWindowContainer.java. A local application can trick the victim into opening a specially crafted file and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Chromecast: before 10

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External links
https://source.android.com/security/bulletin/2022-05-01

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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?

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