Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title Zsh vulnerabilities
Informations
Name USN-3764-1 First vendor Publication 2018-09-11
Vendor Ubuntu Last vendor Modification 2018-09-11
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Zsh could be made to execute arbitrary code if it received a specially crafted script.

Software Description: - zsh: shell with lots of features

Details:

It was discovered that Zsh incorrectly handled certain scripts. An attacker could possibly use this issue to execute arbitrary code. (CVE-2018-0502, CVE-2018-13259)

Richard Maciel Costa discovered that Zsh incorrectly handled certain scripts. An attacker could possibly use this issue to execute arbitrary code. (CVE-2018-1100)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS: ﾃつ zshﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ 5.4.2-3ubuntu3.1

Ubuntu 16.04 LTS: ﾃつ zshﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ 5.1.1-1ubuntu2.3

Ubuntu 14.04 LTS: ﾃつ zshﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ ﾃつ 5.0.2-3ubuntu6.3

After a standard system update you need to restart Zsh to make all the necessary changes.

References: ﾃつ https://usn.ubuntu.com/usn/usn-3764-1 ﾃつ CVE-2018-0502, CVE-2018-1100, CVE-2018-13259

Package Information: ﾃつ https://launchpad.net/ubuntu/+source/zsh/5.4.2-3ubuntu3.1 ﾃつ https://launchpad.net/ubuntu/+source/zsh/5.1.1-1ubuntu2.3 ﾃつ https://launchpad.net/ubuntu/+source/zsh/5.0.2-3ubuntu6.3

Original Source

Url : http://www.ubuntu.com/usn/USN-3764-1

CWE : Common Weakness Enumeration

% Id Name
67 % CWE-20 Improper Input Validation
33 % CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 186
Os 3
Os 2
Os 2
Os 2

Nessusﾂｮ Vulnerability Scanner

Date Description
2019-01-14 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2019-013-01.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-16bb8b00c5.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-5ad8e216d2.nasl - Type : ACT_GATHER_INFO
2019-01-03 Name : The remote Fedora host is missing a security update.
File : fedora_2018-a5e9a619f6.nasl - Type : ACT_GATHER_INFO
2018-12-28 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1424.nasl - Type : ACT_GATHER_INFO
2018-12-10 Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2018-1396.nasl - Type : ACT_GATHER_INFO
2018-12-07 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2018-1107.nasl - Type : ACT_GATHER_INFO
2018-11-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-3073.nasl - Type : ACT_GATHER_INFO
2018-10-11 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1089.nasl - Type : ACT_GATHER_INFO
2018-09-17 Name : The remote Fedora host is missing a security update.
File : fedora_2018-8b1b2373b4.nasl - Type : ACT_GATHER_INFO
2018-07-24 Name : The remote PhotonOS host is missing multiple security updates.
File : PhotonOS_PHSA-2018-2_0-0050.nasl - Type : ACT_GATHER_INFO
2018-06-22 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2018-1932.nasl - Type : ACT_GATHER_INFO
2018-05-29 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201805-10.nasl - Type : ACT_GATHER_INFO
2018-05-11 Name : The remote Amazon Linux 2 host is missing a security update.
File : al2_ALAS-2018-1013.nasl - Type : ACT_GATHER_INFO
2018-05-07 Name : The remote Fedora host is missing a security update.
File : fedora_2018-ac1d9c2777.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2018-10-26 21:23:03
  • Multiple Updates
2018-09-12 00:19:17
  • First insertion