Denial Of Service (DoS)

qemu-kvm-rhev is vulnerable to denial of service DoS attacks. The vulnerability exists as a memory leak in hw/watchdog/wdti6300esb.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption and QEMU process crash via a large number of...

VMware ESXi, Workstation and Fusion Uninitialized Stack Memory Usage Vulnerability (CNVD-2018-22943)

VMware ESXi, Workstation, and Fusion are all products of VMware, Inc. VMware ESXi is a server virtualization platform that can be installed directly on physical servers; VMware Workstation is a suite of virtual machine software; and Fusion is a suite of virtual machine software that is designed t...

Debian DSA-4279-1 : linux - security update (Foreshadow)

Multiple researchers have discovered a vulnerability in the way the Intel processor designs have implemented speculative execution of instructions in combination with handling of page-faults. This flaw could allow an attacker controlling an unprivileged process to read memory from arbitrary...

Kernel: hw: cpu: L1 terminal fault (L1TF)

Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of...

Kernel: hw: cpu: L1 terminal fault (L1TF)

Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of...

Kernel: hw: cpu: L1 terminal fault (L1TF)

Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of...

dpdk: Information exposure in unchecked guest physical to host virtual address translations

The DPDK vhost-user interface does not check to verify that all the requested guest physical range is mapped and contiguous when performing Guest Physical Addresses to Host Virtual Addresses translations. This may lead to a malicious guest exposing vhost-user backend process memory...

Microsoft Windows Hyper-V Information Disclosure Vulnerability (CNVD-2018-08860)

Microsoft Windows 10 and Windows Server Version 1709 are products of Microsoft Corporation.Microsoft Windows 10 is a cross-platform operating system for PCs and laptops, tablets, and cell phones.Windows Server Version 1709 is a server operating system.Windows Hyper-V is a virtualization product...

Windows Hyper-V Information Disclosure Vulnerability

An information disclosure vulnerability exists when Windows Hyper-V on a host operating system fails to properly validate input from an authenticated user on a guest operating system. To exploit the vulnerability, an attacker on a guest operating system could run a specially crafted application...

The vulnerability of the v9fs_xattrwalk function (hw/9pfs/9p.c) in the Qemu hardware emulation software allows a hacker to obtain confidential information from the memory of the host operating system.

The vulnerability of the v9fsxattrwalk function hw/9pfs/9p.c in the Qemu hardware emulation software exists due to an error in reading extended attributes race condition. Exploiting this vulnerability can allow a malicious attacker on the host operating system to obtain confidential information...

DEBIAN-CVE-2017-15038

Race condition in the v9fsxattrwalk function in hw/9pfs/9p.c in QEMU aka Quick Emulator allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes...

UBUNTU-CVE-2017-15038

Race condition in the v9fsxattrwalk function in hw/9pfs/9p.c in QEMU aka Quick Emulator allows local guest OS users to obtain sensitive information from host heap memory via vectors related to reading extended attributes...

DEBIAN-CVE-2017-14431

Memory leak in Xen 3.3 through 4.8.x allows guest OS users to cause a denial of service ARM or x86 AMD host OS memory consumption by continually rebooting, because certain cleanup is skipped if no pass-through device was ever assigned, aka XSA-207...

Qemu: input: host memory lekage via keyboard events

Memory leak in the keyboard input event handlers support in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption by rapidly generating large keyboard events...

Qemu: watchdog: memory leakage in virtual hardware watchdog wdt_i6300esb

Memory leak in hw/watchdog/wdti6300esb.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption and QEMU process crash via a large number of device unplug operations...

Qemu: serial: host memory leakage 16550A UART emulation

Memory leak in the serialexitcore function in hw/char/serial.c in QEMU aka Quick Emulator allows local guest OS privileged users to cause a denial of service host memory consumption and QEMU process crash via a large number of device unplug operations...

Qemu: i386: leakage of stack memory to guest in kvmvapic.c

An information-exposure flaw was found in Quick Emulator QEMU in Task Priority Register TPR optimizations for 32-bit Windows guests. The flaw could occur while accessing TPR. A privileged user inside a guest could use this issue to read portions of the host memory...

Qemu: i386: leakage of stack memory to guest in kvmvapic.c

An information-exposure flaw was found in Quick Emulator QEMU in Task Priority Register TPR optimizations for 32-bit Windows guests. The flaw could occur while accessing TPR. A privileged user inside a guest could use this issue to read portions of the host memory...

Qemu: usb: xhci memory leakage during device unplug

A memory-leak flaw was found in the Quick EmulatorQEMU built with USB xHCI controller emulation support. The flaw could occur while doing a USB-device unplug operation. Unplugging the device repeatedly resulted in leaking host memory, which affected other services on the host. A privileged user...

Kernel: kvm: page reference leakage in handle_vmon

Linux kernel built with the KVM visualization support CONFIGKVM, with nested visualizationnVMX feature enablednested=1, is vulnerable to host memory leakage issue. It could occur while emulating VMXON instruction in 'handlevmon'. An L1 guest user could use this flaw to leak host memory potentiall...