Package: dash
Version: 0.5.8-2.4
Severity: normal

When trying to redirect output to a filedescriptor contained in an
environment variable, but if that variable is empty, dash crashes with a
segmentation fault. To reproduce, run the following:

echo test >&$EMPTY_VARIABLE

-- System Information:
Debian Release: 9.0
  APT prefers unstable
  APT policy: (1001, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.9.0-2-amd64 (SMP w/12 CPU cores)
Locale: LANG=nl_NL.utf8, LC_CTYPE=nl_NL.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages dash depends on:
ii  debianutils  4.8.1.1
ii  dpkg         1.18.23
ii  libc6        2.24-10

dash recommends no packages.

dash suggests no packages.

-- debconf information:
* dash/sh: true

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