RHEL 6 : ksh (RHSA-2020:0515)

high Nessus Plugin ID 133750

Synopsis

The remote Red Hat host is missing a security update for ksh.

Description

The remote Redhat Enterprise Linux 6 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2020:0515 advisory.

- ksh: certain environment variables interpreted as arithmetic expressions on startup, leading to code injection (CVE-2019-14868)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL ksh package based on the guidance in RHSA-2020:0515.

See Also

http://www.nessus.org/u?8bba6156

https://access.redhat.com/security/updates/classification/#important

https://access.redhat.com/errata/RHSA-2020:0515

https://bugzilla.redhat.com/show_bug.cgi?id=1757324

Plugin Details

Severity: High

ID: 133750

File Name: redhat-RHSA-2020-0515.nasl

Version: 1.8

Type: local

Agent: unix

Published: 2/18/2020

Updated: 4/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-14868

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:ksh, cpe:/o:redhat:enterprise_linux:6

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2020

Vulnerability Publication Date: 2/7/2020

Reference Information

CVE: CVE-2019-14868

CWE: 77

RHSA: 2020:0515