/ 
Net-DNS-0.59
/ Net::DNS::RR::TXT
Security Advisories (3)
CVE-2007-6341 (2008-02-08)

Allows remote attackers to cause a denial of service (program "croak") via a crafted DNS response.

CVE-2007-3409 (2007-06-26)

Net::DNS before 0.60, a Perl module, allows remote attackers to cause a denial of service (stack consumption) via a malformed compressed DNS packet with self-referencing pointers, which triggers an infinite loop.

CVE-2007-3377 (2007-06-25)

Header.pm in Net::DNS before 0.60, a Perl module, (1) generates predictable sequence IDs with a fixed increment and (2) can use the same starting ID for all child processes of a forking server, which allows remote attackers to spoof DNS responses, as originally reported for qpsmtp and spamassassin.

NAME

Net::DNS::RR::TXT - DNS TXT resource record

SYNOPSIS

use Net::DNS::RR;

DESCRIPTION

Class for DNS Text (TXT) resource records.

METHODS

txtdata

print "txtdata = ", $rr->txtdata, "\n";

Returns the descriptive text as a single string, regardless of actual number of <character-string> elements. Of questionable value. Should be deprecated.

Use $txt->rdatastr() or $txt->char_str_list() instead.

char_str_list

print "Individual <character-string> list: \n\t", 
      join("\n\t", $rr->char_str_list());

Returns a list of the individual <character-string> elements, as unquoted strings. Used by TXT->rdatastr and TXT->rr_rdata.

FEATURES

The RR.pm module accepts semi-colons as a start of a comment. This is to allow the RR.pm to deal with RFC1035 specified zonefile format.

For some applications of the TXT RR the semicolon is relevant, you will need to escape it on input.

Also note that you should specify the several character strings separately. The easiest way to do so is to include the whole argument in single quotes and the several character strings in double quotes. Double quotes inside the character strings will need to be escaped.

my $TXTrr=Net::DNS::RR->new('txt2.t.net-dns.org. 60 IN TXT "Test1 \" \; more stuff" "Test2"');

would result in $TXTrr->char_str_list())[0] containing 'Test1 " ; more stuff' and $TXTrr->char_str_list())[1] containing 'Test2'

COPYRIGHT

Copyright (c) 1997-2002 Michael Fuhr.

Portions Copyright (c) 2002-2004 Chris Reinhardt. Portions Copyright (c) 2005 Olaf Kolkman (NLnet Labs)

All rights reserved. This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

perl(1), Net::DNS, Net::DNS::Resolver, Net::DNS::Packet, Net::DNS::Header, Net::DNS::Question, Net::DNS::RR, RFC 1035 Section 3.3.14