CVE Catalog

CVE-2016-9777

High
Published: Translated: NVD NIST

Summary

KVM in the Linux kernel before version 4.8.12 does not properly restrict the VCPU index when I/O APIC is enabled. This allows guest OS users to gain host OS privileges or cause a denial of service through a crafted interrupt request.

Risk Assessment

The organization may be exposed to unauthorized privilege escalation by guest OS users, potentially leading to serious security breaches and host OS crashes.

Recommendation

It is recommended to update the Linux kernel to version 4.8.12 or later to mitigate this vulnerability and reduce the risk of unauthorized access.

Related vulnerabilities

Original NVD description (English source)

KVM in the Linux kernel before 4.8.12, when I/O APIC is enabled, does not properly restrict the VCPU index, which allows guest OS users to gain host OS privileges or cause a denial of service (out-of-bounds array access and host OS crash) via a crafted interrupt request, related to arch/x86/kvm/ioapic.c and arch/x86/kvm/ioapic.h.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS