From 27261da09be059c6400d71138f060eb94faa407e Mon Sep 17 00:00:00 2001 From: Joey Hess Date: Sun, 6 Jan 2008 18:25:43 -0500 Subject: web commit by adb --- doc/bugs/taint_issue_with_regular_expressions.mdwn | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'doc/bugs/taint_issue_with_regular_expressions.mdwn') diff --git a/doc/bugs/taint_issue_with_regular_expressions.mdwn b/doc/bugs/taint_issue_with_regular_expressions.mdwn index e05a59879..5ba9e19f6 100644 --- a/doc/bugs/taint_issue_with_regular_expressions.mdwn +++ b/doc/bugs/taint_issue_with_regular_expressions.mdwn @@ -19,4 +19,13 @@ which is exactly the same regular expression drawn out as a constant. It appear > checking in the debian package. You can do the same by building ikiwiki > with NOTAINT=1. :-( --[[Joey]] -[[tag done]] +---------------- +Continuing to dig into the problem I reported, it may not be taint after all. Running strings on the ikiwiki.cgi wrapper, I see stuff like: + + 'wiki_file_regexp' => bless( do{\(my $o = undef)}, 'Regexp' ) + +without any payload of the actual regexp, and that would also certainly also have the observed effect of the regexps being completely broken while running in CGI mode. This seems to implicate Data::Dumper (2.101). After upgrading Data::Dumper to 2.121 I get: + + 'wiki_file_regexp' => qr/(?-xism:(^[-[:alnum:]_.:\/+]+$))/ + +This would call for at most an installation prerequisite of Data::Dumper >= 1.121. A look at the module's changelog shows that no intervening versions were actually released, so 1.121 would be the minimal good one. -- cgit v1.2.3