5.5
CVSSv3

CVE-2018-19407

Published: 21/11/2018 Updated: 21/03/2019
CVSS v2 Base Score: 4.9 | Impact Score: 6.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 436
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

The vcpu_scan_ioapic function in arch/x86/kvm/x86.c in the Linux kernel up to and including 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized.

Vulnerability Trend

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linux linux kernel

canonical ubuntu linux 16.04

canonical ubuntu linux 14.04

canonical ubuntu linux 18.04

canonical ubuntu linux 18.10

Vendor Advisories

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A NULL pointer dereference security flaw was found in the Linux kernel in the vcpu_scan_ioapic() function in arch/x86/kvm/x86c This allows local users with certain privileges to cause a denial of service via a crafted system call to the KVM subsystem ...