avahi security update

0.6.31-20 - multicast DNS no longer responds to unicast queries outside of local network 1663410...

ALPINE-CVE-2017-6519

avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service traffic amplification and may cause information leakage by obtaining potentially sensitive information...

UBUNTU-CVE-2017-6519

avahi-daemon in Avahi through 0.6.32 and 0.7 inadvertently responds to IPv6 unicast queries with source addresses that are not on-link, which allows remote attackers to cause a denial of service traffic amplification and may cause information leakage by obtaining potentially sensitive information...