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[Marc Deslauriers <marc.deslauriers@xxxxxxxxxxxxx>]

** Information type changed from Private Security to Public Security

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https://bugs.launchpad.net/bugs/1773561

Title:
  Xenial/16.04: GIMP needs a security update - unfixed issues (CVE-2017:
  17784-17789).

Status in gimp package in Ubuntu:
  Incomplete
Status in gimp source package in Xenial:
  New
Status in gimp source package in Artful:
  New

Bug description:
  Hello.

  GIMP package ('Universe/Security' section), available in
  "Xenial"/16.04 LTS Release, contains unfixed security issues and is
  vulnerable to, for example, heap-buffer over-read, out of bounds read
  and stack-based buffer over-read etc. The whole thing is pretty
  strange, because Ubuntu Releases released before and after "Xenial",
  contains updated GIMP package!

  Anyway, it looks this way: in "Trusty" the available version is:
  '2.8.10-0ubuntu1.2' (please see [1]). "Bionic" has '2.8.20-1.1'
  version (please see [2]). Both Releases contains fixes for mentioned
  security issues: CVE-2017-* etc. However, GIMP version in "Xenial" is
  '2.8.16-1ubuntu1.1' and does not contain any security updates from
  2017. (The last one is from Thu, 30 Jun 2016.; please see [3]).

  Security updates with fixes for mentioned CVE's (please compare
  changes in 1. and 2. with 3.) were released on Thu., 18 Jan 2018 - for
  "Trusty" and Tue., 26 Dec 2017 - for "Bionic". In "Xenial", the last
  security update is from Thu., 30 Jun 2016 (fix for CVE-2016-4994) and
  there is no further updates!

  Here is a CVE list of security issues not fixed in "Xenial", but in
  "Trusty" and "Bionic" etc.:

  1/ CVE-2017-17784: Heap-buffer over-read in load_image file-gbr.c
  2/ CVE-2017-17785: Heap-based buffer overflow in fli_read_brun function
  3/ CVE-2017-17786: Out of bounds read
  4/ CVE-2017-17787: Heap-based buffer over-read in read_creator_block
  5/ CVE-2017-17788: Stack-based buffer over-read in xcf_load_stream
  6/ CVE-2017-17789: Heap-based buffer overflow in read_channel_data

  And the most important thing: if User had installed GIMP package in
  "Xenial" Release, he is affected - since one year, at least - because
  of a vulnerable version. Security issues, mentioned above, are from
  2017. So, maybe it's a good opportunity to update GIMP to v2.10.2
  version, released on 20., May 2018? (Version 2.8.X is very outdated).

  I wanted to send an email to Mr Marc Deslauriers, because he made the
  last security update for GIMP in "Xenial" (fix for CVE-2016-4994). But
  I decided to report a bug on Launchpad. I hope that it's an acceptable
  way. If not, I'm sorry.

  By the way: similar problems with unfixed security issues, can be
  found e.g. in Audacious and Parole packages. But that's a different
  story, completely different story...

  Thanks, best regards.
  ______________________
  1. http://changelogs.ubuntu.com/changelogs/pool/main/g/gimp/gimp_2.8.10-0ubuntu1.2/changelog 
  2. http://changelogs.ubuntu.com/changelogs/pool/universe/g/gimp/gimp_2.8.20-2/changelog 
  3. http://changelogs.ubuntu.com/changelogs/pool/universe/g/gimp/gimp_2.8.16-1ubuntu1.1/changelog

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