Debian: 2174-1: avahi: denial of service


 
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Special Forums Cybersecurity Security Advisories (RSS) Debian: 2174-1: avahi: denial of service
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Old 02-28-2011
Debian: 2174-1: avahi: denial of service

LinuxSecurity.com: It was discovered that avahi, an implementation of the zeroconf protocol, can be crashed remotely by a single UDP packet, which may result in a denial of service. [More...]

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avahi.service(5)						File Formats Manual						  avahi.service(5)

NAME
avahi.service - avahi-daemon static service file SYNOPSIS
/etc/avahi/services/*.service DESCRIPTION
/etc/avahi/services/*.service are XML fragments containing static DNS-SD service data. Every service file can contain multiple service def- initions which share the same name. This is useful for publishing service data for services which implement multiple protocols. (i.e. a printer implementing _ipp._tcp and _printer._tcp) XML TAGS
<service-group> The document tag of avahi service files. Should contain one <name> and one or more <service> elements. <name replace-wildcards="yes|no"> The service name. If replace-wildcards is "yes", any occurence of the string "%h" will be replaced by the local host name. This can be used for service names like "Remote Terminal on %h". If replace-wildcards is not specified, defaults to "no". <service protocol="ipv4|ipv6|any"> Contains the service information for exactly one service type. Should contain one <type> and one <port> element. Optionally it may contain one <domain-name>, one <host-name>, any number of <subtype> and any number of <txt-record> elements. The attribute protocol specifies the protocol to advertise the service on. If any is used (which is the default), the service will be adver- tised on both IPv4 and IPv6. <type> Contains the DNS-SD service type for this service. e.g. "_http._tcp". <subtype> Contains an additional DNS-SD service subtype for this service. e.g. "_anon._sub._ftp._tcp". <domain-name> The domain name this service should be registered. If omited defaults to the default domain of the avahi daemon. (probably .local) <host-name> The host name of the host that provides this service. This should be a host that is resolvable by multicast or unicast DNS. Please note that you need to specify a fully-qualified domain name (FQDN) here, i.e. .local is not appended implicitly! The host name doesn't need to be part of the domain specified in <domain-name>. See avahi.hosts(5) for more information how to publish additional host name mappings. <port> The IP port number the service listens on. <txt-record> DNS-SD TXT record data. AUTHORS
The Avahi Developers <avahi (at) lists (dot) freedesktop (dot) org>; Avahi is available from http://avahi.org/ SEE ALSO
avahi-daemon(8), avahi.hosts(5) COMMENTS
This man page was written using xml2man(1) by Oliver Kurth. Manuals User avahi.service(5)