Low: zsh

Issue Overview: NULL dereference in cd in sh compatibility mode under given circumstances 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 Null-pointer...

CVE-2018-7548

In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using $PA... on an empty array result...

Null pointer dereference

In subst.c in zsh through 5.4.2, there is a NULL pointer dereference when using $PA... on an empty array result...