Red Hat Security Advisory 2019-2017-01 - 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, but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions, a history mechanism, and more.
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Gentoo Linux Security Advisory 201903-2 - Input validation errors in Zsh could result in arbitrary code execution. Versions less than 5.6 are affected.
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