Updated zsh packages has been released to address multiple vulnerabilities in the zsh shell

Package : zsh
Version : 4.3.17-1+deb7u1
CVE IDs : CVE-2014-10070 CVE-2014-10071 CVE-2014-10072
CVE-2016-10714 CVE-2017-18206

It was discovered that there were multiple vulnerabilities in the
"zsh" shell:

* CVE-2014-10070: Fix a privilege-elevation issue if the
environment has not been properly sanitized.

* CVE-2014-10071: Prevent a buffer overflow for very long file
* descriptors in the ">& fd" syntax.

* CVE-2014-10072: Correct a buffer overflow when scanning very long
directory paths for symbolic links.

* CVE-2016-10714: Fix an off-by-one error that was resulting in
undersized buffers that were intended to support PATH_MAX.

* CVE-2017-18206: Fix a buffer overflow in symlink expansion.


For Debian 7 "Wheezy", this issue has been fixed in zsh version
4.3.17-1+deb7u1.

We recommend that you upgrade your zsh packages.