Bug#854442: XXE vulnerability in python-openpyxl

2017-02-08 Thread Markus Koschany
Hi, I am currently investigating if the versions of openpyxl in Wheezy and Jessie are vulnerable. Apparently support for lxml was first introduced in version 1.8. Wheezy and Jessie ship older versions though. Is there another attack vector or can we assume that all versions without lxml support a

Bug#854442: XXE vulnerability in python-openpyxl

2017-02-07 Thread Yaroslav Halchenko
On Tue, 07 Feb 2017, Yaroslav Halchenko wrote: > thanks for the very detailed report!!! I have adopted that patch for our > now dated version of openpyxl -- upload is coming shortly unfortunately a blind adaptation of the patch wasn't sufficient, since running your PoC code results in $> pytho

Bug#854442: XXE vulnerability in python-openpyxl

2017-02-07 Thread Yaroslav Halchenko
thanks for the very detailed report!!! I have adopted that patch for our now dated version of openpyxl -- upload is coming shortly On Tue, 07 Feb 2017, Ulikowski, Marcin wrote: > Package: python-openpyxl > Version: <= 2.3.5 > Openpyxl is vulnerable to XXE which allows reading local files and Do