Alma Linux: CVE-2023-3354: Important: qemu-kvm security and bug fix update (ALSA-2023-5094)
Description
A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a NULL pointer dereference issue. This could allow a remote unauthenticated client to cause a denial of service.
Solution(s)
- alma-upgrade-qemu-guest-agent
- alma-upgrade-qemu-img
- alma-upgrade-qemu-kvm
- alma-upgrade-qemu-kvm-audio-pa
- alma-upgrade-qemu-kvm-block-curl
- alma-upgrade-qemu-kvm-block-rbd
- alma-upgrade-qemu-kvm-common
- alma-upgrade-qemu-kvm-core
- alma-upgrade-qemu-kvm-device-display-virtio-gpu
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-ccw
- alma-upgrade-qemu-kvm-device-display-virtio-gpu-pci
- alma-upgrade-qemu-kvm-device-display-virtio-vga
- alma-upgrade-qemu-kvm-device-usb-host
- alma-upgrade-qemu-kvm-device-usb-redirect
- alma-upgrade-qemu-kvm-docs
- alma-upgrade-qemu-kvm-tools
- alma-upgrade-qemu-kvm-ui-egl-headless
- alma-upgrade-qemu-kvm-ui-opengl
- alma-upgrade-qemu-pr-helper
- Lightweight Endpoint Agent
- Live Dashboards
- Real Risk Prioritization
- IT-Integrated Remediation Projects
- Cloud, Virtual, and Container Assessment
- Integrated Threat Feeds
- Easy-to-Use RESTful API
- Automation-Assisted Patching
- Automated Containment
With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.
– Scott Cheney, Manager of Information Security, Sierra View Medical Center