openstack-nova-compute: Arbitrary Host File Overwrite via Unconstrained qemu-img Format Handling in OpenStack Nova

A flaw in OpenStack Nova’s interaction with the qemu-img utility allows an authenticated user to overwrite arbitrary files on the compute host. This occurs because Nova invokes qemu-img without strictly constraining the disk image format, enabling a malicious user to craft a QCOW2 header on a raw...

Ubuntu 22.04 LTS / 24.04 LTS / 25.04 : QEMU vulnerabilities (USN-7744-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7744-1 advisory. It was discovered that QEMU incorrectly handled certain virtio devices. A privileged guest attacker could use this issue to cause QEM...