#VU59558 NULL pointer dereference in SHIELD TV


Published: 2022-01-12

Vulnerability identifier: #VU59558

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-34405

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
SHIELD TV
Hardware solutions / Firmware

Vendor: nVidia

Description

The vulnerability allows a malicious application to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in in TrustZone’s TEE_Malloc function. A malicious application can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SHIELD TV: 6.0 - 8.0


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


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.


Latest bulletins with this vulnerability