Errata overview
Errata ID 63
Date 2017-06-28
Source package shadow
Fixed in version 1:4.2-3+deb8u4
This update addresses the following issues:
* Reset pid_child only if waitpid was successful. This is a regression fix
  for CVE-2017-2616. If su receives a signal like SIGTERM, it is not
  propagated to the child.
Additional notes
CVE ID CVE-2017-2616
UCS Bug number #44673