Does it affect the KnowHost VPS? What to do?
Critical security flaw: glibc stack-based buffer overflow in getaddrinfo() (CVE-2015-7547)
https://access.redhat.com/articles/2161461
https://ma.ttias.be/critical-glibc-buffer-overflow-vulnerability-getaddrinfo-linux-cve-2015-7547-cve-2015-5229/...