USN-3488-1 linux-azure vulnerability

It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service host OS crash or possibly execute arbitrary code in the host OS...

DEBIAN-CVE-2017-12168

The accesspmuevcntr function in arch/arm64/kvm/sysregs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service assertion failure and host OS crash by accessing the Performance Monitors Cycle Count Register PMCCNTR...

kernel: kvm: x86: NULL pointer dereference during instruction decode

Linux kernel built with the Kernel-based Virtual Machine CONFIGKVM support is vulnerable to a null pointer dereference flaw. It could occur on x86 platform, when emulating an undefined instruction. An attacker could use this flaw to crash the host kernel resulting in DoS...

DEBIAN-CVE-2016-10150

Use-after-free vulnerability in the kvmioctlcreatedevice function in virt/kvm/kvmmain.c in the Linux kernel before 4.8.13 allows host OS users to cause a denial of service host OS crash or possibly gain privileges via crafted ioctl calls on the /dev/kvm device...

PT-2016-3112 · Linux +2 · Linux Kernel +2

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 4.8.13 Description: The issue is related to a use-after-free vulnerability in the kvm ioctl create device function. This vulnerability can be exploited by host OS users to cause a denial of service, resulting in...

Kernel: powerpc: kvm: Infinite loop via H_CEDE hypercall when running under hypervisor-mode

arch/powerpc/kvm/book3shvrmhandlers.S in the Linux kernel through 4.7 on PowerPC platforms, when CONFIGKVMBOOK3S64HV is enabled, allows guest OS users to cause a denial of service host OS infinite loop by making a HCEDE hypercall during the existence of a suspended transaction...

UBUNTU-CVE-2016-4440

arch/x86/kvm/vmx.c in the Linux kernel through 4.6.3 mishandles the APICv on/off state, which allows guest OS users to obtain direct APIC MSR access on the host OS, and consequently cause a denial of service host OS crash or possibly execute arbitrary code on the host OS, via x2APIC mode...

kernel: x86: espfix not working for 32-bit KVM paravirt guests

It was found that the espfix functionality does not work for 32-bit KVM paravirtualized guests. A local, unprivileged guest user could potentially use this flaw to leak kernel stack addresses...

UBUNTU-CVE-2015-8104

The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a denial of service host OS panic or hang by triggering many DB aka Debug exceptions, related to svm.c...

USN-2806-1 linux-lts-vivid vulnerability

Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtual machine could use this to cause a denial of service system crash in the host OS...

Kernel Virtual Machine Memory Corruption Vulnerability

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the U.S. The Kernel Virtual Machine KVM, Kernel-based Virtual Machine is a type of virtualization infrastructure used in it. A memory corruption vulnerability exists in Kernel Virtual Machine. A...

USN-2684-1: Linux kernel vulnerabilities

A flaw was discovered in the kvm kernel virtual machine subsystem's kvmapichasevents function. A unprivileged local user could exploit this flaw to cause a denial of service system crash. CVE-2015-4692 Daniel Borkmann reported a kernel crash in the Linux kernel's BPF filter JIT optimization. A...

DEBIAN-CVE-2015-3456

The Floppy Disk Controller FDC in QEMU, as used in Xen 4.5.x and earlier and KVM, allows local guest users to cause a denial of service out-of-bounds write and guest crash or possibly execute arbitrary code via the 1 FDCMDREADID, 2 FDCMDDRIVESPECIFICATIONCOMMAND, or other unspecified commands, ak...

Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2515-2)

USN-2515-1 fixed vulnerabilities in the Linux kernel. There was an unrelated regression in the use of the virtual counter CNTVCT on arm64 architectures. This update fixes the problem. We apologize for the inconvenience. A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the...

USN-2516-3 linux vulnerabilities

USN-2516-1 fixed vulnerabilities in the Linux kernel, and the fix in USN-2516-2 was incomplete. There was an unrelated regression in the use of the virtual counter CNTVCT on arm64 architectures. This update fixes the problem. We apologize for the inconvenience. Original advisory details: A flaw w...

Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2515-1)

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...

Ubuntu: Security Advisory (USN-2514-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu: Security Advisory (USN-2517-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Ubuntu 14.10 : linux vulnerabilities (USN-2518-1)

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...

USN-2517-1: Linux kernel (Utopic HWE) vulnerabilities

A flaw was discovered in the Kernel Virtual Machine's KVM emulation of the SYSTENTER instruction when the guest OS does not initialize the SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of service of the guest OS crash or potentially gain privileges on the guest OS...