The __read_etc_hosts_r function in libc/inet/resolv.c in uClibc-ng before 1.0.12 allows remote DNS servers to cause a denial of service (infinite loop) via a crafted packet.
https://security-tracker.debian.org/tracker/CVE-2016-2225
http://www.securityfocus.com/bid/82903
http://www.openwall.com/lists/oss-security/2016/02/05/3
http://www.openwall.com/lists/oss-security/2016/02/05/2
http://repo.or.cz/uclibc-ng.git/commit/6932f2282ba0578d6ca2f21eead920d6b78bc93c