Code execution in Insyde FvbServicesRuntimeDxe driver



Published: 2022-02-03
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-42554
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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FvbServicesRuntimeDxe
Hardware solutions / Drivers

Vendor

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU60282

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42554

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in SMM. A remote attacker can trigger memory corruption 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

FvbServicesRuntimeDxe: before 5.5: 05.50.51, 5.4: 05.42.51, 5.3: 05.35.42, 5.2: 05.26.42, 5.1: 05.16.42, 5.0: 05.08.42


CPE2.3 External links

http://www.insyde.com/security-pledge

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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