Use-after-free in SHIELD TV - CVE-2021-34403
Published: January 12, 2022
Vulnerability identifier: #VU59556
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2021-34403
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a malicious application to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the nvmap ioctl. A malicious application can trigger a use-after-free error and execute arbitrary code with elevated privileges.
Affected software
SHIELD TV
How to mitigate CVE-2021-34403
Install updates from vendor's website.
SHIELD TV - update to 9.0