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Suggestion detail

Untriaged
Permalink CVE-2025-11234
7.5 HIGH
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): NONE
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): NONE
  • Availability impact (A): HIGH
created 2 months ago
Qemu-kvm: vnc websocket handshake use-after-free

A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.

References

Affected products

qemu
  • <10.1.2
rhcos
  • *
qemu-kvm
  • *
qemu-kvm-ma
virt:av/qemu-kvm
virt:8.2/qemu-kvm
virt:rhel/qemu-kvm

Matching in nixpkgs

pkgs.qemu

Generic and open source machine emulator and virtualizer

pkgs.qemu-user

QEMU User space emulator - launch executables compiled for one CPU on another CPU

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