qemu

QEMU’s built‑in VNC server contains a deceptively simple bug — a NULL pointer dereference in qemu_clipboard_request() that can be reached by processing a malformed ClientCutText sequence — and the result is a stable, remotely reachable denial‑of‑service that administrators must treat as a...

A subtle bug in QEMU’s virtio-net RSS implementation has been quietly remaking risk calculations for operators who run multi‑tenant or untrusted virtual machines: when RSS (Receive Side Scaling) is enabled for the virtio‑net device, an attacker with elevated privileges inside the guest can...

QEMU hosts worldwide were quietly at risk of abrupt, complete shutdowns after a subtle SCSI emulation bug allowed a guest to trigger a division-by-zero that kills the QEMU process and the running virtual machine itself, a denial-of-service flaw tracked as CVE‑2023‑42467. The defect—rooted in how...

QEMU’s built‑in VNC server contains a logic error in its clipboard decompression routine that can trap the server process in an infinite loop, allowing a remote, authenticated client to trigger a denial‑of‑service condition by sending specially crafted clipboard data. Background / Overview QEMU...

CVE‑2023‑3301 is a QEMU vulnerability that lets a malicious guest reliably trigger an assertion during a hot‑unplug operation — a race between asynchronous device teardown steps — and in practice can drop the hosting QEMU process, producing a high‑impact denial‑of‑service for affected...

A heap buffer overflow in QEMU’s virtual crypto device — specifically in the function virtio_crypto_sym_op_helper() — creates a fragile attack surface that can be triggered when the reported source and destination lengths for a symmetric crypto operation differ; the result is a potentially...

The QEMU SR-IOV implementation contains a subtle but meaningful bug: hw/pci/pcie_sriov.c in QEMU through 10.0.3 mishandles the VF Enable bit write mask, a logic error tracked as CVE-2025-54567 that can lead to incorrect registration/unregistration of virtual functions (VFs) and inconsistent...

A stack-based buffer overflow in QEMU's e1000 emulated NIC — tracked as CVE-2025-12464 — creates a reliable host-side denial-of-service vector when a guest processes short frames in loopback mode, and operators running qemu/qemu-kvm in multi-tenant or untrusted-guest environments should treat...

WinBoat arrives as one of the clearest attempts yet to bridge the Windows-on-Linux gap by running a full Windows environment inside a lightweight Docker container and exposing apps to the Linux desktop as (nearly) native windows. Background WinBoat is an open‑source project from TibixDev that...

Yes — you can run Windows applications on Linux, and there are multiple, practical ways to do it today: traditional compatibility layers like Wine, user-friendly front-ends such as Bottles, game-focused solutions via Steam/Proton, classic virtualization with VirtualBox (or Quickemu/QEMU), and an...

WinBoat’s containerized approach promises a step change for anyone who needs to run Windows apps inside a Linux desktop: instead of translating Windows APIs or running a compatibility layer, WinBoat launches a full Windows environment inside a Docker-backed container and exposes that Windows...

Microsoft has released Azure Linux 3.0.20250702, the latest monthly update to its in-house Linux distribution utilized both internally and by external partners. This July 2025 update introduces a series of security enhancements, feature additions, and performance improvements, underscoring...

What if two titans of the tech world—Apple and Nintendo—joined forces not in business strategy, but in code? It’s a hypothetical that’s long fueled internet speculation, tech memes, and YouTube “what if” showdowns. But thanks to a persistent hobbyist who goes by PatRyk, that scenario briefly...

Once upon a time, running Windows on anything that didn't loudly hum with the unmistakable whine of a spinning hard drive and sport the logo of a major PC manufacturer was reserved for the kind of digital wizardry that inspired equal parts awe and “Are you sure you want to do this?” Today...

In today’s multi-OS world, the boundaries between operating systems are blurring. Whether you’re a developer testing cross-platform apps, a power user needing that one Windows-only tool, or simply curious about a different workflow, running Windows on Linux has never been easier. Thanks to...

If you've ever found yourself stuck between two worlds, lusting after the sleek design of an Apple Silicon Mac while also yearning for the capabilities of Windows, you’re not alone. Traditionally, Apple Macs were the idyllic playground for creatives, while Windows machines ruled the roost for...

This guide describes how to install and launch guest Windows 11 running at near-native speed in open-source Qemu emulator under host Windows 11. This privides an alternative if you want to install and use guest OS on a drive encrypted with open-source software and not with Microsoft-made...

Occasionally I got bootable *.iso images which contain a Linux system with some additional software. Ok, I could burn these ISO images on a CD/DVD and boot from them in order to test the software. But I could imagine that there is something like a Linux boot emulator (similar to QEMU under...

Xen Virtualization on Linux and Solaris: "First of all setup DNJL PPA to upgrade KVM/QEMU up to Qemu 0.12.5 & Libvirt 0.8.3 on Ubuntu Lucid Server and download the most recent Fedora virtio-win drivers from http://alt.fedoraproject.org/pub/alt/virtio-win/latest/images/bin as floppy and ISO...

Xen Virtualization on Linux and Solaris: "Create Windows KVM via virt-manager as usual. Download Latest VirtIO Win drivers from Fedora." Link Removed