The vulnerability of the x86_emulate_insn function in the arch/x86/kvm/emulate.c component of the Linux operating system’s kernel allows a hacker to cause a service failure.

The vulnerability of the x86emulateinsn function in the arch/x86/kvm/emulate.c component of the Linux operating system’s kernel is related to pointer arithmetic errors. Exploiting this vulnerability allows an attacker to cause a service failure...

SUSE CVE-2010-0435

The Hypervisor aka rhev-hypervisor in Red Hat Enterprise Virtualization RHEV 2.2, and KVM 83, when the Intel VT-x extension is enabled, allows guest OS users to cause a denial of service NULL pointer dereference and host OS crash via vectors related to instruction emulation...

SUSE CVE-2011-1780

The instruction emulation in Xen 3.0.3 allows local SMP guest users to cause a denial of service host crash by replacing the instruction that causes the VM to exit in one thread with a different instruction in a different thread...

SUSE CVE-2016-9377

Xen 4.5.x through 4.7.x on AMD systems without the NRip feature, when emulating instructions that generate software interrupts, allows local HVM guest OS users to cause a denial of service guest crash by leveraging IDT entry miscalculation...

SUSE CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

DEBIAN-CVE-2022-1852

A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86emulateinsn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU...

Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

Debian DLA-2242-1 : linux-4.9 security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks. CVE-2019-2182 Hanjun Guo and Lei Li reported a race condition in the arm64 virtual memory management code, which could lead to an information disclosur...

Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

Medium: kernel

Issue Overview: A stack buffer overflow issue was found in the getrawsocket routine of the Host kernel accelerator for virtio net vhost-net driver. It could occur while doing an ictolVHOSTNETSETBACKEND call, and retrieving socket name in a kernel stack variable via getrawsocket. A user able to...

DEBIAN-CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

Design/Logic Flaw

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5542)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2020-5542 advisory. - KVM: nVMX: Check IO instruction VM-exit conditions Oliver Upton Orabug: 30847137 CVE-2020-2732 - KVM: nVMX: Refactor IO bitmap checks into helper function...

CVE-2020-2732

A flaw was found in the way KVM hypervisor handled instruction emulation for the L2 guest when nested=1 virtualization is enabled. In the instruction emulation, the L2 guest could trick the L0 hypervisor into accessing sensitive bits of the L1 hypervisor. An L2 guest could use this flaw to...

UBUNTU-CVE-2020-2732

A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest...