CVE-2019-3886: 1694880 – (CVE-2019-3886) CVE-2019-3886 libvirt: virsh domhostname command discloses guest hostname in readonly mode

An incorrect permissions check was discovered in libvirt 4.8.0 and above. The readonly permission was allowed to invoke APIs depending on the guest agent, which could lead to potentially disclosing unintended information or denial of service by causing libvirt to block.