CentOS 6 : zsh (CESA-2018:1932)

critical Nessus Plugin ID 110652

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

An update for zsh is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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 when scanning very long directory paths for symbolic links (CVE-2014-10072)

* zsh: buffer overrun in symlinks (CVE-2017-18206)

* zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100)

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 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 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

Solution

Update the affected zsh packages.

Plugin Details

Severity: Critical

ID: 110652

File Name: centos_RHSA-2018-1932.nasl

Version: 1.5

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 6/22/2018

Updated: 9/17/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2017-18206

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:zsh-html, p-cpe:/a:centos:centos:zsh

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 6/21/2018

Vulnerability Publication Date: 2/27/2018

Reference Information

CVE: CVE-2014-10072, CVE-2017-18206, CVE-2018-1083, CVE-2018-1100

RHSA: 2018:1932

Detections

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