libevent -- multiple vulnerabilities

Debian Security reports:

CVE-2016-10195: The name_parse function in evdns.c in
libevent before 2.1.6-beta allows remote attackers to have
unspecified impact via vectors involving the label_len
variable, which triggers an out-of-bounds stack read.
CVE-2016-10196: Stack-based buffer overflow in the
evutil_parse_sockaddr_port function in evutil.c in libevent
before 2.1.6-beta allows attackers to cause a denial of
service (segmentation fault) via vectors involving a long
string in brackets in the ip_as_string argument.
CVE-2016-10197: The search_make_new function in evdns.c
in libevent before 2.1.6-beta allows attackers to cause a
denial of service (out-of-bounds read) via an empty
hostname.