CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
80.6%
CentOS Errata and Security Advisory CESA-2018:3073
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 (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.
Security Fix(es):
zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)
zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071)
zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)
zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205)
zsh: buffer overrun in symlinks (CVE-2017-18206)
zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071)
zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100)
zsh: crash on copying empty hash table (CVE-2018-7549)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat).
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.
Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-cr-announce/2018-November/032012.html
Affected packages:
zsh
zsh-html
Upstream details at:
https://access.redhat.com/errata/RHSA-2018:3073
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
CentOS | 7 | x86_64 | zsh | < 5.0.2-31.el7 | zsh-5.0.2-31.el7.x86_64.rpm |
CentOS | 7 | x86_64 | zsh-html | < 5.0.2-31.el7 | zsh-html-5.0.2-31.el7.x86_64.rpm |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
80.6%