Incomplete cleanup in Linux kernel - CVE-2021-4032

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Main Vulnerability Database Vulnerabilities #VU92410

Incomplete cleanup in Linux kernel - CVE-2021-4032

Published: January 21, 2022 / Updated: January 28, 2022


Vulnerability identifier: #VU92410
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-4032
CWE-ID: CWE-459
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local privileged user to perform a denial of service (DoS) attack.

The vulnerability exists due to incomplete cleanup error within the export_symbol_gpl(), kvm_lapic_reset() and kvm_create_lapic() functions in arch/x86/kvm/lapic.c. A local privileged user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's repository.

External links