MGASA-2018-0168

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MGASA-2018-0168

Summary: Updated zsh packages fix security vulnerabilities

Details: Zsh has been updated to fix 4 security issues. In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command with no argument if HOME is not set. (CVE-2017-18205) In utils.c in zsh before 5.4, symlink expansion had a buffer overflow. (CVE-2017-18206) In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using ${(PA)...} on an empty array result.(CVE-2018-7548) In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p. (CVE-2018-7549)

References: https://advisories.mageia.org/MGASA-2018-0168.html, https://bugs.mageia.org/show_bug.cgi?id=22741, https://usn.ubuntu.com/3593-1/