CentOS 8 : bash (CESA-2021:1679)

high Nessus Plugin ID 149781

Synopsis

The remote CentOS host is missing a security update.

Description

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2021:1679 advisory.

- bash: when effective UID is not equal to its real UID the saved UID is not dropped (CVE-2019-18276)

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 affected bash and / or bash-doc packages.

See Also

https://access.redhat.com/errata/RHSA-2021:1679

Plugin Details

Severity: High

ID: 149781

File Name: centos8_RHSA-2021-1679.nasl

Version: 1.4

Type: local

Agent: unix

Published: 5/19/2021

Updated: 6/2/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

Temporal Vector: E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2019-18276

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:8-stream, p-cpe:/a:centos:centos:bash, p-cpe:/a:centos:centos:bash-doc

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/18/2021

Vulnerability Publication Date: 11/28/2019

Reference Information

CVE: CVE-2019-18276

RHSA: 2021:1679