A double free vulnerability was found in QEMU virtio devices (virtio-gpu, virtio-serial-bus, virtio-crypto), where the memreentrancyguard flag insufficiently protects against DMA reentrancy issues. This issue could allow a malicious privileged guest user to crash the QEMU process on the host, resulting in a denial of service or allow arbitrary code execution within the context of the QEMU process on the host.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-block-extra" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-block-extra-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-block-supplemental" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-block-supplemental-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-guest-agent" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-guest-agent-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-arm" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-arm-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-common" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-common-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-data" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-gui" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-gui-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-mips" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-mips-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-misc" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-misc-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-modules-opengl" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-modules-opengl-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-modules-spice" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-modules-spice-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-ppc" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-ppc-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-s390x" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-s390x-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-sparc" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-sparc-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-x86" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-x86-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-x86-xen" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-xen" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-system-xen-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-user" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-user-binfmt" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-user-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-user-static" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-user-static-dbgsym" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-utils" }, { "binary_version": "1:9.0.2+ds-4ubuntu2", "binary_name": "qemu-utils-dbgsym" } ] }