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Date: Mon, 13 Jun 2011 15:28:11 -0400 (EDT)
From: Josh Bressers <>
Cc: Damyan Ivanov <>, Mark Stosberg <>,, Iain Arnell <>,
        Marcela Maslanova <>,
        "Steven M. Christey" <>
Subject: Re: CVE Request -- Data-FormValidator -- Reports
 invalid field as valid when untaint_all_constraints used

----- Original Message -----
> Hello, Josh, Steve, vendors,
> It was found that perl-Data-FormValidator, a HTML form user input
> validator, used to treat certain invalid fields as valid, when the
> untaint_all_constraints directive was used (default for majority of
> Data-FormValidator routines). A remote attacker could use this flaw to
> bypass perl Taint mode protection mechanism via specially-crafted
> input
> provided to the HTML form.
> Note: Hopefully Damyan, Mark can clarify here, if valid data from
> Data-FormValidator are automatically marked as untainted for
> perl Taint mode or not. If there still is perl Taint mode
> protection check present, even on valid Data-FormValidator
> data and it couldn't happen, that tainted data would be passed
> further to the script processing, then this is not a security
> issue.
> References:
> [1]
> [2]
> [3]

Upstream seem to believe this is a security flaw.

Please use CVE-2011-2201.



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