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CVE-2016-9777

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-3190-2
Posted Feb 10, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3190-2 - Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. It was discovered that a use-after-free existed in the KVM susbsystem of the Linux kernel when creating devices. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-10147, CVE-2016-10150, CVE-2016-8399, CVE-2016-8632, CVE-2016-9777
SHA-256 | cf4cc9859b178aeba3d7971d5f7e2816de9414942d6b55bc51f88f58392aac87
Ubuntu Security Notice USN-3190-1
Posted Feb 3, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3190-1 - Mikulas Patocka discovered that the asynchronous multibuffer cryptographic daemon in the Linux kernel did not properly handle being invoked with incompatible algorithms. A local attacker could use this to cause a denial of service. It was discovered that a use-after-free existed in the KVM susbsystem of the Linux kernel when creating devices. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-10147, CVE-2016-10150, CVE-2016-8399, CVE-2016-8632, CVE-2016-9777
SHA-256 | bd67da6c07218157f0d827497e94107d511dd272fd135c5e7062763994f1a47d
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