CVE-2020-14377

A flaw was found in dpdk in versions before 18.11.10 and before 19.11.5. A complete lack of validation of attacker-controlled parameters can lead to a buffer over read. The results of the over read are then written back to the guest virtual machine memory. This vulnerability can be used by an...

Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the...

Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the...

Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the...

Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario

A flaw was found in the Linux kernel, where it allows userspace processes, for example, a guest VM, to directly access h/w devices via its VFIO driver modules. The VFIO modules allow users to enable or disable access to the devices' MMIO memory address spaces. If a user attempts to access the...

VMware Tools Local Elevation of Privilege Vulnerability (CNVD-2020-13854)

VMware Tools is an enhancement tool that comes with VMware virtual machines, equivalent to the enhancements in VirtualBox Sun VirtualBox Guest Additions, and is a driver provided by VMware to enhance the performance of virtual graphics cards and hard disks, as well as to synchronize the clocks of...

CVE-2019-0711

A denial of service vulnerability exists when Microsoft Hyper-V on a host server fails to properly validate input from a privileged user on a guest operating system. To exploit the vulnerability, an attacker who already has a privileged account on a guest operating system, running as a virtual...

DEBIAN-CVE-2019-3840

A NULL pointer dereference flaw was discovered in libvirt before version 5.0.0 in the way it gets interface information through the QEMU agent. An attacker in a guest VM can use this flaw to crash libvirtd and cause a denial of service...

How to Collect XenServer Guest VM Operation Log

This article explains how to collect XenServer guest vm operation log...

MGASA-2018-0344 Updated microcode packages fix security vulnerabilities

This microcode update provides the Intel 20180807 microcode release that adds the processor microcode side of fixes and mitigations for the now publically known security issue affected Intel processors called L1 Terminal Fault L1TF for most Intel processors since Intel Core gen2: Systems with...

USN-3741-1: Linux kernel vulnerabilities

It was discovered that memory present in the L1 data cache of an Intel CPU core may be exposed to a malicious process that is executing on the CPU core. This vulnerability is also known as L1 Terminal Fault L1TF. A local attacker in a guest virtual machine could use this to expose sensitive...

CentOS Update for libvirt CESA-2018:1997 centos7

Check the version of libvirt SPDX-FileCopyrightText: 2018 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 scriptoid"1.3.6.1.4.1.25623.1.0.882917";...

UBUNTU-CVE-2017-17044

An issue was discovered in Xen through 4.9.x allowing HVM guest OS users to cause a denial of service infinite loop and host OS hang by leveraging the mishandling of Populate on Demand PoD errors...

CVE-2017-0098

Hyper-V in Microsoft Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows guest OS users, running as virtual machines, to cause a denial of service via a crafted application, aka "Hyper-V Denial of Service Vulnerability." This vulnerability is different from those described in...

Scientific Linux Security Update : qemu-kvm on SL7.x x86_64 (20170302)

Security Fixes : - Quick emulator QEMU built with the Cirrus CLGD 54xx VGA emulator support is vulnerable to an out-of-bounds access issue. It could occur while copying VGA data via bitblt copy in backward mode. A privileged user inside a guest could use this flaw to crash the QEMU process...

RHEL 6 : kernel (RHSA-2017:0307)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:0307 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: When creating audit records for...

USN-3208-2 linux-lts-xenial vulnerabilities

USN-3208-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that the generic SCSI block layer in the Linux kernel did not proper...

qemu security update

CentOS Errata and Security Advisory CESA-2017:0083 An update for qemu-kvm is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity...

Scientific Linux Security Update : kernel on SL5.x i386/x86_64 (20161220)

Security Fixes : - A use-after-free vulnerability was found in the kernels socket recvmmsg subsystem. This may allows remote attackers to corrupt memory and may allow execution of arbitrary code. This corruption takes place during the error handling routines within sysrecvmmsg function...

UBUNTU-CVE-2016-0749

The smartcard interaction in SPICE allows remote attackers to cause a denial of service QEMU-KVM process crash or possibly execute arbitrary code via vectors related to connecting to a guest VM, which triggers a heap-based buffer overflow...