The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, accepts an "emulatorbin" argument to specify the program providing emulation for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own privileges.
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt-bin" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt-bin-dbgsym" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt-dev" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt-dev-dbgsym" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt-doc" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt0" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt0-dbg" }, { "binary_version": "1.3.1-1ubuntu10.27", "binary_name": "libvirt0-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libnss-libvirt" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libnss-libvirt-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-bin" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-clients" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-clients-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-gluster" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-gluster-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-rbd" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-rbd-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-sheepdog" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-sheepdog-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-zfs" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-driver-storage-zfs-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-system" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-daemon-system-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-dev" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-doc" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-sanlock" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-sanlock-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-wireshark" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt-wireshark-dbgsym" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt0" }, { "binary_version": "4.0.0-1ubuntu8.12", "binary_name": "libvirt0-dbgsym" } ] }