From 19d0fb169eed475e1c053e99036b8668625cfa94 Mon Sep 17 00:00:00 2001 From: Jens Rehsack Date: Tue, 6 Oct 2020 10:22:17 +0200 Subject: [PATCH] lib/DBD/File.pm: fix CVE-2014-10401 Dig into the root cause of RT#99508 - which resulted in CVE-2014-10401 - and figure out that DBI->parse_dsn is the wrong helper to parse our attributes in DSN, since in DBD::dr::connect only the "dbname" remains from DSN which causes parse_dsn to bailout. Parsing on our own similar to parse_dsn shows the way out. Signed-off-by: Jens Rehsack --- lib/DBD/File.pm | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/lib/DBD/File.pm b/lib/DBD/File.pm index fb14e9a..f55076f 100644 --- a/lib/DBD/File.pm +++ b/lib/DBD/File.pm @@ -109,7 +109,11 @@ sub connect # We do not (yet) care about conflicting attributes here # my $dbh = DBI->connect ("dbi:CSV:f_dir=test", undef, undef, { f_dir => "text" }); # will test here that both test and text should exist - if (my $attr_hash = (DBI->parse_dsn ($dbname))[3]) { + # + # Parsing on our own similar to parse_dsn to find attributes in 'dbname' parameter. + if ($dbname) { + my @attrs = split /;/ => $dbname; + my $attr_hash = { map { split /\s*=>?\s*|\s*,\s*/, $_} @attrs }; if (defined $attr_hash->{f_dir} && ! -d $attr_hash->{f_dir}) { my $msg = "No such directory '$attr_hash->{f_dir}"; $drh->set_err (2, $msg); @@ -120,7 +124,6 @@ sub connect if ($attr and defined $attr->{f_dir} && ! -d $attr->{f_dir}) { my $msg = "No such directory '$attr->{f_dir}"; $drh->set_err (2, $msg); - $attr->{RaiseError} and croak $msg; return; }