It was discovered that systemd is vulnerable to a state injection attack when deserializing the state of a service. Properties longer than LINE_MAX are not correctly parsed and an attacker may abuse this flaw in particularly configured services to inject, change, or corrupt the service state. An out of bounds read was discovered in systemd-journald in the way it parses log messages that terminate with a colon ":". A local attacker can use this flaw to disclose process memory data. A memory leak was discovered in the systemd-login when a power-switch event is received. A physical attacker may trigger one of these events and leak bytes due to a missing free. A memory leak was discovered in the backport of fixes for CVE-2018-16864 in Red Hat Enterprise Linux. Function dispatch_message_real in journald-server.c does not free the memory allocated by set_iovec_field_free to store the `_CMDLINE=` entry. A local attacker may use this flaw to make systemd-journald crash