Here is the code in question from PerlIO.... 

sub import
{
 my $class = shift;
 while (@_)
  {
   my $layer = shift;
   if (exists $alias{$layer})
    {
     $layer = $alias{$layer}
    }
   else
    {
     $layer = "${class}::$layer";
    }
   eval "require $layer";   # line 22
   warn $@ if $@;

[download]

It would seem reasonable to add: 

$layer = $1 if $layer =~ m/^([\w:]+)$/;

[download]

Just before the eval to untaint it safely. That should allow everything through that needs to come through. It is a resonable patch I would have thought. It may however just allow stuff to break elsewhere.

Does your script really need to be suid in the first place?

cheers

tachyon

In reply to Re: Perl 5.8.0 PerlIO insecure dependency by tachyon
in thread Perl 5.8.0 PerlIO insecure dependency by bplatz

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