The pit_ioport_read function in the Programmable Interval Timer (PIT) emulation in i8254.c in KVM 83 does not properly use the pit_state data structure which allows guest OS users to cause a denial of service (host OS crash or hang) by attempting to read the /dev/port file.

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Linux Linux kernel version at least v4.8 onwards, probably well before contains a Insufficient input validation vulnerability in bnx2x network card driver that can result in DoS: Network card firmware assertion takes card off-line. This attack appear to be exploitable via An attacker on a must pass a very large, specially crafted packet to the bnx2x card. This can be done from an untrusted guest VM..

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A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that L1 guest could access L0's APIC register values via L2 guest when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

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CVE-2020-26105

In cPanel before 88.0.3, insecure chkservd test credentials are used on a templated VM SEC-554...

CVE-2020-26103

In cPanel before 88.0.3, an insecure site password is used for Mailman on a templated VM SEC-551...

CVE-2020-26102

In cPanel before 88.0.3, an insecure auth policy API key is used by Dovecot on a templated VM SEC-550...

CVE-2020-26101

In cPanel before 88.0.3, insecure RNDC credentials are used for BIND on a templated VM SEC-549...

Denial Of Service (DoS)

xen is vulnerable to denial of service DoS. An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a GP fault, and...

VMware Workstation 15.x < 15.5.7 Multiple Vulnerabilities (VMSA-2020-0020)

The version of VMware Workstation installed on the remote host is 15.x. It is, therefore, affected by the following vulnerabilities: - Multiple out-of-bounds read vulnerabilities in Cortado ThinPrint components JPEG2000 parser, EMR STRETCHDIBITS parser, and EMF Parser. A malicious actor with norm...

ALPINE-CVE-2020-25598

An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEMacquireresource error path. The RCU Read, Copy, Update mechanism is a synchronisation primitive. A buggy error path in the XENMEMacquireresource exits without releasing an RCU reference, which is conceptually similar to...

UBUNTU-CVE-2020-25596

An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a GP fault, and incorrectly delivers it twice to the guest...

Netlogon Weak Cryptographic Authentication

A vulnerability exists within the Netlogon authentication process where the security properties granted by AES are lost due to an implementation flaw related to the use of a static initialization vector IV. An attacker can leverage this flaw to target an Active Directory Domain Controller and mak...

midwestmachinetool.com Cross Site Scripting vulnerability OBB-1354764

Following coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: &nbsp&nbsp&nbsp&nbsp&nbsp&nbspa. verified the vulnerability and confirmed its existence; &nbsp&nbsp&nbsp&nbsp&nbsp&nbspb. notified the website operator about its existence...

Vectra and Microsoft join forces to step up detection and response

This blog post is part of the Microsoft Intelligent Security Association MISA guest blog series. Click here to learn more about MISA. Traditional security operations center SOC processes typically involve a wide variety of disparate event notification tools that force overworked analysts to battl...

SecOps Teams Wrestle with Manual Processes, HR Gaps

Only about half of enterprises are satisfied with their ability to detect cybersecurity threats, according to a survey from Forrester Consulting – with respondents painting a picture of major resource and technology gaps hamstringing their efforts to block cyberattacks. According to the...

Maze Ransomware Adopts Ragnar Locker Virtual-Machine Approach

The operators of the Maze ransomware have added a fresh trick to their bag of badness: Distributing ransomware payloads via virtual machines VM. It’s a “radical” approach, according to researchers, meant to help the ransomware get around endpoint defense. That’s according to researchers with Soph...

CVE-2020-7358

In AppSpider installer versions prior to 7.2.126, the AppSpider installer calls an executable which can be placed in the appropriate directory by an attacker with access to the local machine. This would prevent the installer from distinguishing between a valid executable called during an...

Code injection

In AppSpider installer versions prior to 7.2.126, the AppSpider installer calls an executable which can be placed in the appropriate directory by an attacker with access to the local machine. This would prevent the installer from distinguishing between a valid executable called during an...

Facebook HHVM Data Forgery Issue Vulnerability

Facebook HHVM aka HipHop Virtual Machine is a virtual machine from Facebook that significantly improves the performance of loading dynamic pages in PHP. A data forgery issue vulnerability exists in Facebook HHVM versions prior to 3.9.5, 3.10.0 through 3.12.3, and 3.13.0 through 3.14.1, which stem...

Citrix WEM Agents not Synchronizing Error “No Connection Could be Made Because The Target Machine Actively Refused it”

Citrix Virtual Delivery Agents running Workspace Environment Management WEM Agents are not synchronizing with two or more WEM Broker servers load balanced via Citrix Gateway. Policies delivered through WEM are not applying to agents Event Viewer shows the following error:“No connection could be...