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...

Demo: A Guide to Virtual Machine App Security

Enhance your virtual machine VM application security from vulnerabilities in your Spring Framework Java application by reviewing these guidelines...

Demo: A Guide to Virtual Machine App Security

Enhance your virtual machine VM application security from vulnerabilities in your Spring Framework Java application by reviewing these guidelines...

SpoolSploit - A Collection Of Windows Print Spooler Exploits Containerized With Other Utilities For Practical Exploitation

A collection of Windows print spooler exploits containerized with other utilities for practical exploitation. Summary SpoolSploit is a collection of Windows print spooler exploits containerized with other utilities for practical exploitation. A couple of highly effective methods would be relaying...

CVE-2021-38923

IBM PowerVM Hypervisor FW1010 could allow a privileged user to gain access to another VM due to assigning duplicate WWPNs. IBM X-Force ID: 210162...

Vyper buffer error vulnerability

Vyper is the Pythonic smart contract language for EVM. Vyper suffers from a buffer error vulnerability that stems from an incorrect pointer to the top of the stack, which can lead to memory corruption issues...

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...

KVM API Stack Overflow

The vulnerability of the KVM API of the Linux operating system is related to writing beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause a stack overflow...

IBM PowerVM Hypervisor security vulnerabilities

IBM PowerVM Hypervisor is an application from Universal Business Machines IBM, Inc. provides a secure and scalable virtualized environment for applications built on the advanced RAS features and leading performance of the Power Systems platform. A security vulnerability exists in IBM PowerVM...

CVE-2021-3653

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 ...

USN-5094-1 linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-snapdragon vulnerabilities

It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. An attacker who could start and control a VM could possibly use this to expose sensitive information or execute...

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...

SUSE-SU-2021:3207-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2021-3759: Unaccounted ipc objects in Linux kernel could have lead to breaking memcg limits and DoS attacks bsc1190115. - CVE-2021-38160: Data corruption or...

CVE-2021-22011

vCenter Server contains an unauthenticated API endpoint vulnerability in vCenter Server Content Library. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to perform unauthenticated VM network setting manipulation...

mruby:mruby_fuzzer: Heap-buffer-overflow in mrb_vm_exec

Project: https://github.com/mruby/mruby.git Detailed Report: https://oss-fuzz.com/testcase?key=5267095118544896 Project: mruby Fuzzing Engine: libFuzzer Fuzz Target: mrubyfuzzer Job Type: libfuzzerasanmruby Platform Id: linux Crash Type: Heap-buffer-overflow READ 1 Crash Address: 0x6020000023fb...

CVE-2021-40444 PoC - Malicious docx generator to exploit CVE-2021-40444 (Microsoft Office Word Remote Code Execution)

Malicious docx generator to exploit CVE-2021-40444 Microsoft Office Word Remote Code Execution Creation of this Script is based on some reverse engineering over the sample used in-the-wild: 938545f7bbe40738908a95da8cdeabb2a11ce2ca36b0f6a74deda9378d380a52 docx file You need to install lcab first...

Azure Zero-Day Bugs Show Lurking Supply-Chain Risk

Four Microsoft zero-day vulnerabilities in the Azure cloud platform’s Open Management Infrastructure OMI — a software that many don’t know is embedded in a host of services — show that OMI represents a significant security blind spot, researchers said. Collectively dubbed “OMIGOD” because of the...

CVE-2020-3960

VMware ESXi 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG, Workstation 15.x before 15.5.5, and Fusion 11.x before 11.5.5 contain an out-of-bounds read vulnerability in NVMe functionality. A malicious actor with local non-administrative access to a virtual machine with a...

Exploit for Path Traversal in Microsoft

CVE-2021-40444 PoC Malicious docx generator to exploit CVE-20...

Fedora: Security Advisory for libguestfs (FEDORA-2021-4dd269a76c)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 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...