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[Łukasz Zemczak <1652325@xxxxxxxxxxxxxxxxxx>]

** Also affects: libxml2 (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Changed in: libxml2 (Ubuntu Xenial)
       Status: New => Confirmed

** Changed in: libxml2 (Ubuntu)
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1652325

Title:
  Libxml2 2.9.3 fails to parse multi-byte character in large CDATA
  section that is split across buffer

Status in libxml2:
  Fix Released
Status in libxml2 package in Ubuntu:
  Invalid
Status in libxml2 source package in Xenial:
  Confirmed

Bug description:
  Ubuntu 16.04 packages libxml2 version 2.9.3*, which contains a
  regression documented here:
  https://git.gnome.org/browse/libxml2/commit/?id=4f8606c13cb7f2684839f850b83de5ce647d3ca7

  Full release notes of 2.9.4 can be seen here:
  http://xmlsoft.org/news.html

  The bug will affect XML push parser that fails with bogus UTF-8
  encoding error when multi-byte character in large CDATA section is
  split across buffer, which can be quite common.

  As Xenial is an LTS version and this bug is quite *critical*, I wonder
  if we should provide an update to fix this one. If I remember
  correctly, we're not supposed to update to a newer version a given
  package for a given version of Ubuntu, but as this version of Ubuntu
  will be used in many servers in the coming years and XML parsing is
  quite a common task, it may help a lot of developers to have a
  backported fix of this issue.

  Let me know you if you need more information.

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