Ubuntu 19.10: 2020-d3f4f1a6885 Important Bash Security Update

The zsh shell is a command interpreter usable as an interactive login

shell and as a shell script command processor. Zsh resembles the ksh

shell (the Korn shell), but includes many enhancements. Zsh supports

command line editing, built-in spelling correction, programmable

command completion, shell functions (with autoloading), a history

mechanism, and more.

- fix stack-based buffer overflow in utils.c:checkmailpath() (CVE-2018-1100) -fix stack-based buffer overflow in gen_matches_files() (CVE-2018-1083) - fix

stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071)

* Wed Apr 18 2018 Kamil Dudka - 5.4.1-3

- fix stack-based buffer overflow in utils.c:checkmailpath() (CVE-2018-1100)

- fix stack-based buffer overflow in gen_matches_files() (CVE-2018-1083)

- fix stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071)

* Tue Mar 6 2018 Kamil Dudka - 5.4.1-2

- avoid crash when copying empty hash table (CVE-2018-7549)

- avoid NULL dereference when using ${(PA)...} on an empty array (CVE-2018-7548)

[ 1 ] Bug #1563396 - CVE-2018-1100 zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1563396

[ 2 ] Bug #1560696 - CVE-2018-1083 zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1560696

[ 3 ] Bug #1553533 - CVE-2018-1071 zsh: Stack-based buffer overflow in exec.c:hashcmd() [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1553533

su -c 'dnf upgrade --advisory FEDORA-2018-ac1d9c2777' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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