kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks

A flaw was found in the Linux kernel’s KVM implementation, where improper handing of the VMIO|VMPFNMAP VMAs in KVM bypasses RO checks and leads to pages being freed while still accessible by the VMM and guest. This flaw allows users who can start and control a VM to read/write random pages of...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

How to Add Multiple CD or DVD Drives to XenServer Virtual Machines

This article describes how to add more than one CD/DVD drive to a Virtual Machine VM...

Facebook HHVM path traversal vulnerability

Facebook HHVM a.k.a. HipHop Virtual Machine is a virtual machine from Facebook Inc. that significantly improves the performance of loading dynamic pages in PHP. HHVM suffers from a path traversal vulnerability that stems from improper design or implementation during code development of a networke...

Oracle Java SE and Oracle GraalVM Enterprise Edition Information Disclosure Vulnerability

Java SE stands for Java Platform Standard Edition and is used to develop and deploy Java applications for desktops, servers, and embedded devices and real-time environments.Oracle GraalVM Enterprise Edition is an Oracle-based multilingual virtual machine for enterprise Java SE. An information...

Oracle VM VirtualBox Denial of Service Vulnerability (CNVD-2021-81788)

Oracle VM VirtualBox is a virtual machine management software from Oracle. A denial of service vulnerability exists in the Core component of Oracle VM VirtualBox versions prior to 6.1.28, which can be exploited by an attacker to cause Oracle VM VirtualBox to hang or crash frequently and repeatedl...

Oracle VM VirtualBox Denial of Service Vulnerability (CNVD-2021-81789)

Oracle VM VirtualBox is a virtual machine management software from Oracle. A denial of service vulnerability exists in the Core component of Oracle VM VirtualBox versions prior to 6.1.28, which can be exploited by an attacker to cause Oracle VM VirtualBox to hang or crash frequently and repeatedl...

kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

Oracle Database Server input validation error vulnerability

Oracle Database Server is a relational database management system from Oracle Corporation USA. The database management system provides data management, distributed processing, and other functions.An unspecified vulnerability exists in the Java VM component of Oracle Database Server versions...

Design/Logic Flaw

The evm crate is a pure Rust implementation of Ethereum Virtual Machine. In evm crate 0.31.0, JUMPI opcode's condition is checked after the destination validity check. However, according to Geth and OpenEthereum, the condition check should happen before the destination validity check. This is a...

CVE-2021-41153

The evm crate is a pure Rust implementation of Ethereum Virtual Machine. In evm crate 0.31.0, JUMPI opcode's condition is checked after the destination validity check. However, according to Geth and OpenEthereum, the condition check should happen before the destination validity check. This is a...

PT-2021-23133

Name of the Vulnerable Software and Affected Versions evm crate versions 0.31.0 Description The evm crate, a pure Rust implementation of Ethereum Virtual Machine, has an issue where the JUMPI opcode's condition is checked after the destination validity check, contrary to the expected behavior as...

CVE-2021-41153: Always-Incorrect Control Flow Implementation

The evm crate is a pure Rust implementation of Ethereum Virtual Machine. In evm crate 0.31.0, JUMPI opcode's condition is checked after the destination validity check. However, according to Geth and OpenEthereum, the condition check should happen before the destination validity check. This is a...

Virtuozzo Hybrid Infrastructure 4.7

In this release, Virtuozzo Hybrid Infrastructure provides a wide range of new features that enhance service providers' interoperability and help expand their services. The improvements cover compute services, object storage, core storage, monitoring, high availability for the management node,...

kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...

kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "virtext" field, this issue could allow a malicious...

kernel: powerpc: KVM guest OS users can cause host OS memory corruption

A flaw was found on the Linux kernel. On the PowerPC platform, the KVM guest allows the OS users to cause host OS memory corruption via rtasargs.nargs. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

kernel: powerpc: KVM guest OS users can cause host OS memory corruption

A flaw was found on the Linux kernel. On the PowerPC platform, the KVM guest allows the OS users to cause host OS memory corruption via rtasargs.nargs. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability...

kernel: SVM nested virtualization issue in KVM (AVIC support)

A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could allow a malicious ...