systemd-resolved through 233 allows remote attackers to cause a denial of service (daemon crash) via a crafted DNS response with an empty question section.
{ "availability": "No subscription required", "binaries": [ { "binary_name": "libnss-myhostname", "binary_version": "229-4ubuntu19" }, { "binary_name": "libnss-mymachines", "binary_version": "229-4ubuntu19" }, { "binary_name": "libnss-resolve", "binary_version": "229-4ubuntu19" }, { "binary_name": "libpam-systemd", "binary_version": "229-4ubuntu19" }, { "binary_name": "libsystemd-dev", "binary_version": "229-4ubuntu19" }, { "binary_name": "libsystemd0", "binary_version": "229-4ubuntu19" }, { "binary_name": "libudev-dev", "binary_version": "229-4ubuntu19" }, { "binary_name": "libudev1", "binary_version": "229-4ubuntu19" }, { "binary_name": "systemd", "binary_version": "229-4ubuntu19" }, { "binary_name": "systemd-container", "binary_version": "229-4ubuntu19" }, { "binary_name": "systemd-coredump", "binary_version": "229-4ubuntu19" }, { "binary_name": "systemd-journal-remote", "binary_version": "229-4ubuntu19" }, { "binary_name": "systemd-sysv", "binary_version": "229-4ubuntu19" }, { "binary_name": "udev", "binary_version": "229-4ubuntu19" } ] }