# -*- coding: utf-8 -*-

from system_tests import CaseMeta, path

class DenialOfServiceInAdjustTimeOverflow(metaclass=CaseMeta):

    """

    Regression test for the bug described in:

    https://github.com/Exiv2/exiv2/issues/853

    The date parsing code in XMPUtils::ConvertToDate does not

    check that the month and day are in bounds. This can cause a

    denial of service in AdjustTimeOverflow because it adjusts

    out-of-bounds days in a loop that subtracts one month per

    iteration.

    """

    url = "https://github.com/Exiv2/exiv2/issues/853"

    filename = path("$data_path/issue_853_poc.jpg")

    commands = ["$exiv2 $filename"]

    stdout = [""]

    stderr = [

        """Exiv2 exception in print action for file $filename:

Not a valid ICC Profile

"""]

    retval = [1]