Hey Seth, have a look at the last two comments in the original ticket
for the first CVE that was reported:
https://github.com/Yeraze/ytnef/issues/45#issuecomment-393044169 . The
PR with the proper fix for the CVE mentioned there
(https://github.com/Yeraze/ytnef/pull/58) has already been merged by the
maintainer. Note it depends on at least one other PR as well.

The person that developed that ytnef PR did so after looking at adding
TNEF support to Geary and noticing that ytnef was reasonably broken on
some distros, including Ubuntu. Looking into it, it seems those where it
is broken shipped the patch from the original CVE.

Recently some additional issues have been reported, there's a yet-to-be-
merged PR for those as well: https://github.com/Yeraze/ytnef/pull/71

** Bug watch added: github.com/Yeraze/ytnef/issues #45
   https://github.com/Yeraze/ytnef/issues/45

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https://bugs.launchpad.net/bugs/1666884

Title:
  libytnef: February 2017 multiple vulnerabilities (X41-2017-002)

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