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Vulnerability Details : CVE-2018-7549

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.
Publish Date : 2018-02-27 Last Update Date : 2019-03-04
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:3073: zsh security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20183073 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-7549

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 17.10 * * * Version Details Vulnerabilities
4 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
5 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
6 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
7 Application ZSH ZSH * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 3
Redhat Enterprise Linux Desktop 1
Redhat Enterprise Linux Server 1
Redhat Enterprise Linux Workstation 1
ZSH ZSH 1

- References For CVE-2018-7549

https://security.gentoo.org/glsa/201805-10
GENTOO GLSA-201805-10
https://access.redhat.com/errata/RHSA-2018:3073
REDHAT RHSA-2018:3073
https://sourceforge.net/p/zsh/code/ci/c2cc8b0fbefc9868fa83537f5b6d90fc1ec438dd
https://usn.ubuntu.com/3593-1/
UBUNTU USN-3593-1

- Metasploit Modules Related To CVE-2018-7549

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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