Red Hat Security AdvisoryRHSA-2018:3073
zsh security and bug fix update
Released 2018-10-30 · Red Hat rating Moderate · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux Client (v. 7) zsh-5.0.2-31.el7
- Red Hat Enterprise Linux Client Optional (v. 7) zsh-html-5.0.2-31.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) zsh-5.0.2-31.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) zsh-html-5.0.2-31.el7
- Red Hat Enterprise Linux Server (v. 7) zsh-5.0.2-31.el7
- Red Hat Enterprise Linux Server Optional (v. 7) zsh-html-5.0.2-31.el7
- Red Hat Enterprise Linux Workstation (v. 7) zsh-5.0.2-31.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) zsh-html-5.0.2-31.el7
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) zsh-5.0.2-31.el7
- Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) zsh-html-5.0.2-31.el7
Fixes 8 records
Priority MEDIUM 48
In utils.c in zsh before 5.4, symlink expansion had a buffer overflow.
CVSS 3.0CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.03114 · Published 2018-02-27 · Partial fix CWE-119
Priority MEDIUM 47
In utils.c in zsh before 5.0.6, there is a buffer overflow when scanning very long directory paths for symbolic links.
CVSS 3.0CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02586 · Published 2018-02-27 · Partial fix CWE-119
Priority MEDIUM 47
In exec.c in zsh before 5.0.7, there is a buffer overflow for very long fds in the ">& fd" syntax.
CVSS 3.0CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.02715 · Published 2018-02-27 · Partial fix CWE-119
Priority LOW 39
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.
CVSS 3.0HIGH 8.1· Network · No auth · No interaction · EPSS 0.02043 · Published 2018-02-27 · Partial fix CWE-476
Priority LOW 38
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.
CVSS 3.0HIGH 7.5· Network · No auth · No interaction · EPSS 0.02591 · Published 2018-02-27 · Partial fix CWE-20
Priority LOW 35
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00532 · Published 2018-04-11 · Partial fix CWE-120
Priority LOW 35
Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality.
CVSS 3.0HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00594 · Published 2018-03-28 · Partial fix CWE-120
Priority LOW 25
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function.
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00428 · Published 2018-03-09 · Partial fix CWE-121