#VU62014 Uncontrolled Recursion in edk2 - CVE-2021-28210

Vulnerability identifier: #VU62014

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-28210

CWE-ID: CWE-674

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
edk2
Hardware solutions / Firmware

Vendor: TianoCore

Description

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

The vulnerability exists due to an unlimited recursion in DxeCore. A local user can execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

edk2: edk2-stable202008

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External links
https://bugzilla.tianocore.org/show_bug.cgi?id=1743

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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.