This bug was fixed in the package bash - 4.3-14ubuntu1.4
---------------
bash (4.3-14ubuntu1.4) xenial-security; urgency=medium
* SECURITY UPDATE: rbash restriction bypass (LP: #1803441)
- debian/patches/CVE-2019-9924.patch: if the shell is restricted,
reject attempts to add pathnames containing slashes to the hash table
in variables.c.
- CVE-2019-9924
-- Marc Deslauriers <marc.deslauri...@ubuntu.com> Fri, 12 Jul 2019
14:25:28 -0400
** Changed in: bash (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1803441
Title:
BASH_CMDS is writable in restricted bash shells (fixed upstream, need
to backport patch)
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