Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.

Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.

zsh-5.8-7.7 on GA media

zsh: buffer overflow when scanning very long directory paths for symbolic links zsh: buffer overrun in symlinks zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution

Security update for zsh

Affected: Ubuntu:14.04:LTS: zsh, Ubuntu:16.04:LTS: zsh

Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.