The print_option function in dhcp-common.c in dhcpcd through 6.10.2 misinterprets the return value of the snprintf function, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted message (CVE-2014-7913).
The dhcpcd package has been updated to version 6.11.0 which fixes this issue and has several other bug fixes and enhancements.