#VU59555 Buffer overflow in SHIELD TV - CVE-2021-34402

Vulnerability identifier: #VU59555

Vulnerability risk: Low

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

CVE-ID: CVE-2021-34402

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SHIELD TV
Hardware solutions / Firmware

Vendor: nVidia

Description

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

The vulnerability exists due to a boundary error within NVIDIA NVDEC in NVIDIA Tegra kernel driver. A malicious application can trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SHIELD TV: 6.0 - 8.0

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External links
http://nvidia.custhelp.com/app/answers/detail/a_id/5259

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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.