Privilege escalation in NVIDIA Jetson TX1 L4T R32

1) Input validation error

EUVDB-ID: #VU19296

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-5680

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when loading the "nvtboot-cpu" image in "nvtboot" in the Tegra bootloader. A local authenticated attacker can create a specially crafted application and escalate privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

NVIDIA Jetson TX1 L4T: 19.3 - 32.1

External links

http://nvidia.custhelp.com/app/answers/detail/a_id/4835

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.