Security patches included in Quagga 1.2.3 routing daemon fixes several vulnerabilities. In the worst case scenario a remote attacker could seize control of a running process. Other vulnerabilities could be exploited for retrieval of arbitrary data from the process or DoS. Related CVEs are CVE-2018-5378, CVE-2018-5379, CVE-2018-5380 and CVE-2018-5381.