SB2022012124 - Incomplete cleanup in Linux kernel x86 kvm
Published: January 21, 2022
Security Bulletin ID
SB2022012124
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Incomplete cleanup (CVE-ID: CVE-2021-4032)
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 website.