Control: severity -1 normal On Tue, Jul 4, 2017 at 19:27:09 +0200, Julien Cristau wrote:
> Source: postgrey > Version: 1.36-3 > Severity: grave > User: debian-ad...@lists.debian.org > Usertags: needed-by-DSA-Team > X-Debbugs-Cc: debian-ad...@lists.debian.org > > After upgrading one of our mail relays to stretch, postgrey regularly > crashes with the error is $subject. > > This might or might not be fixed upstream with > https://github.com/schweikert/postgrey/commit/95a2cd8f7f132aae8c62e9706dd9459afca84a5c > which changed the relevant code and among other things added checks for > NetAddr::IP->new returning undef. > Turns out this was most likely due to the recently-added ipv6 support in postgrey [0], and our exim config [1] using the ${mask:...} operator, which would return addresses such as "2a02.1600.0000.0000.0000.0000.0000.0000" [2]. NetAddr::IP would then parse that as an ipv4 address and fail, and postgrey doesn't check for that condition. [0] https://github.com/schweikert/postgrey/commit/629f636058fd4ca05c275ca0f67d7797595933df [1] https://anonscm.debian.org/git/mirror/dsa-puppet.git/tree/modules/exim/templates/eximconf.erb?id=88abaebd66a09e3ef1114422142732ef7559a5de#n785 [2] http://www.exim.org/exim-html-current/doc/html/spec_html/ch-string_expansions.html Cheers, Julien
