#VU60286 Stack-based buffer overflow in DisplayTypeDxe - CVE-2021-42059

Vulnerability identifier: #VU60286

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-2021-42059

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
DisplayTypeDxe
Hardware solutions / Drivers

Vendor: Insyde Software

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A local administrator can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DisplayTypeDxe: before 5.0

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External links
https://www.insyde.com/security-pledge

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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.