Kernel: KVM: OOB memory access via mmio ring buffer

An out-of-bounds access issue was found in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvmcoalescedmmio' object, wherein write indices 'ring-first' and 'ring-last' value could be supplied by a host user-space...

ALPINE-CVE-2019-19583

An issue was discovered in Xen through 4.12.x allowing x86 HVM/PVH guest OS users to cause a denial of service guest OS crash because VMX VMEntry checks mishandle a certain case. Please see XSA-260 for background on the MovSS shadow. Please see XSA-156 for background on the need for DB...

The vulnerability of VMnetDHCP hypervisors in VMware Workstation and VMware Fusion allows a perpetrator to gain unauthorized access to protected information.

The vulnerability of VMnetDHCP hypervisors in VMware Workstation and VMware Fusion lies in the lack of protection for service-related data. Exploiting this vulnerability can allow an attacker, operating remotely, to gain unauthorized access to protected information...

Facebook HHVM Buffer Overflow Vulnerability (CNVD-2020-02572)

Facebook HHVM aka HipHop Virtual Machine is a virtual machine from Facebook that significantly improves the performance of loading dynamic pages in PHP. A buffer overflow vulnerability exists in Facebook HHVM. The vulnerability stems from a network system or product performing operations in memor...

UBUNTU-CVE-2019-11936

Various APC functions accept keys containing null bytes as input, leading to premature truncation of input. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, and 4.28.1...

UBUNTU-CVE-2019-11930

An invalid free in mbdetectorder can cause the application to crash or potentially result in remote code execution. This issue affects HHVM versions prior to 3.30.12, all versions between 4.0.0 and 4.8.5, all versions between 4.9.0 and 4.23.1, as well as 4.24.0, 4.25.0, 4.26.0, 4.27.0, 4.28.0, an...

PT-2019-12566 · Facebook · Hhvm

Name of the Vulnerable Software and Affected Versions: HHVM versions prior to 3.30.12 HHVM versions 4.0.0 through 4.8.5 HHVM versions 4.9.0 through 4.23.1 HHVM versions 4.24.0 through 4.28.1 Description: The issue is caused by an invalid free in mb detect order, which can lead to application...

Kernel: KVM: OOB memory access via mmio ring buffer

An out-of-bounds access issue was found in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvmcoalescedmmio' object, wherein write indices 'ring-first' and 'ring-last' value could be supplied by a host user-space...

Kernel: KVM: OOB memory access via mmio ring buffer

An out-of-bounds access issue was found in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvmcoalescedmmio' object, wherein write indices 'ring-first' and 'ring-last' value could be supplied by a host user-space...

Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer

A use-after-free vulnerability was found in the way the Linux kernel's KVM hypervisor emulates a preemption timer for L2 guests when nested =1 virtualization is enabled. This high resolution timerhrtimer runs when a L2 guest is active. After VM exit, the syncvmcs12 timer object is stopped. The...

CVE-2019-15995

A vulnerability in the web UI of Cisco DNA Spaces: Connector could allow an authenticated, remote attacker to execute arbitrary SQL queries. The vulnerability exists because the web UI does not properly validate user-supplied input. An attacker could exploit this vulnerability by entering malicio...

VMware WorkStation 12.5.3 - Virtual Machine Escape Exploit

VMware Escape Exploit VMware Escape Exploit before VMware WorkStation 12.5.3 Host Target: Win10 x64 Compiler: VS2013 Test on VMware 12.5.2 build-4638234 Known issues Failing to heap manipulation causes host process crash. About 50% successful rate Not quite elaborate because I'm not good at doing...

VMware WorkStation 12.5.5 - Virtual Machine Escape Exploit

VMware Escape Exploit VMware Escape Exploit before VMware WorkStation 12.5.5 Host Target: Win10 x64 Compiler: VS2013 Test on VMware 12.5.2 build-4638234 Known issues Failing to heap manipulation causes host process crash. Not quite elaborate because I'm not good at doing heap "fengshui" on winows...

CVE-2019-16406

Centreon Web 19.04.4 has weak permissions within the OVA aka VMware virtual machine and OVF aka VirtualBox virtual machine files, allowing attackers to gain privileges via a Trojan horse Centreon-autodisco executable file that is launched by cron...

Code injection

Centreon Web 19.04.4 has weak permissions within the OVA aka VMware virtual machine and OVF aka VirtualBox virtual machine files, allowing attackers to gain privileges via a Trojan horse Centreon-autodisco executable file that is launched by cron...

CVE-2019-5542

VMware Workstation 15.x before 15.5.1 and Fusion 11.x before 11.5.1 contain a denial-of-service vulnerability in the RPC handler. Successful exploitation of this issue may allow attackers with normal user privileges to create a denial-of-service condition on their own VM...

The vulnerability of the Virtio Vring component in the QEMU hardware emulation software allows a hacker to induce a system failure.

The vulnerability of the Virtio Vring component in the QEMU hardware emulation software is related to division by zero errors. Exploiting this vulnerability can allow an attacker to cause a system failure...

USN-4185-2 linux-azure vulnerabilities

Stephan van Schaik, Alyssa Milburn, Sebastian Österlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Giorgi Maisuradze, Moritz Lipp, Michael Schwarz, Daniel Gruss, and Jo Van Bulck discovered that Intel processors using Transactional Synchronization Extensions TSX could expose...

Windows Hyper-V Denial of Service Vulnerability

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...

Windows Hyper-V Denial of Service Vulnerability

A denial of service vulnerability exists when Microsoft Hyper-V Network Switch on a host server fails to properly validate input from a privileged user on a guest operating system. An attacker who successfully exploited the vulnerability could cause the host server to crash. To exploit the...