ports/118859: mail/libspf2 not correctly work with MX>5

[dawnshade]

>Number:         118859
>Category:       ports
>Synopsis:       mail/libspf2 not correctly work with MX>5
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 19 14:20:01 UTC 2007
>Closed-Date:
>Last-Modified:
>Originator:     dawnshade
>Release:        6.2-RELEASE
>Organization:
-
>Environment:
FreeBSD mail.host.ru 6.2-RELEASE-p3 FreeBSD 6.2-RELEASE-p3 #0: Sun Apr  8 18:34:30 MSD 2007     root at mail.host.ru:/usr/src/sys/i386/compile/mail_kern_8  i386

>Description:
mail/libspf2 not correctly work with MX>5. for example for domain odnoklassniki.ru several consequence requests give different replies:

mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
fail
Please%see%http://spf.pobox.com/why.html?sender=bezotveta%40odnoklassniki.ru&ip=81.176.227.12&receiver=spfquery : Reason: mechanism
spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender
Received-SPF: fail (spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
fail
Please%see%http://spf.pobox.com/why.html?sender=bezotveta%40odnoklassniki.ru&ip=81.176.227.12&receiver=spfquery : Reason: mechanism
spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender
Received-SPF: fail (spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
fail
Please%see%http://spf.pobox.com/why.html?sender=bezotveta%40odnoklassniki.ru&ip=81.176.227.12&receiver=spfquery : Reason: mechanism
spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender
Received-SPF: fail (spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
fail
Please%see%http://spf.pobox.com/why.html?sender=bezotveta%40odnoklassniki.ru&ip=81.176.227.12&receiver=spfquery : Reason: mechanism
spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender
Received-SPF: fail (spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
fail
Please%see%http://spf.pobox.com/why.html?sender=bezotveta%40odnoklassniki.ru&ip=81.176.227.12&receiver=spfquery : Reason: mechanism
spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender
Received-SPF: fail (spfquery: domain of odnoklassniki.ru does not designate 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;
mail# spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
pass

spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender
Received-SPF: pass (spfquery: domain of odnoklassniki.ru designates 81.176.227.12 as permitted sender) client-ip=81.176.227.12; envelope-from=bezotveta at odnoklassniki.ru;


the problem in defaults .h files
SPF_DEFAULT_MAX_DNS_MX 5
SPF_MAX_DNS_MX 5
library parsing just first 5 MXes given in DNS reply.
>How-To-Repeat:
run several times
spfquery -ip 81.176.227.12 -sender bezotveta at odnoklassniki.ru
>Fix:
http://mta.org.ua/exim-4.67-conf/patches/libspf2-1.2.5-DoS_limits/patch-src::DoS_limits.patch

Credits to Victor Ustugov - <victor at corvax.kiev.ua> 

>Release-Note:
>Audit-Trail:
>Unformatted: