Detections
Analytics

CentOS 8 : expat (CESA-2020:4484)

high Nessus Plugin ID 146038

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Synopsis

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

Description

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4484 advisory.

 - expat: large number of colons in input makes parser consume high amount of resources, leading to DoS (CVE-2018-20843)

 - expat: heap-based buffer over-read via crafted XML input (CVE-2019-15903)

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 expat and / or expat-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2020:4484

Plugin Details

Severity: High

ID: 146038

File Name: centos8_RHSA-2020-4484.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2/1/2021

Updated: 1/24/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2018-20843

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS Score Source: CVE-2019-15903

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:expat, p-cpe:/a:centos:centos:expat-devel

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 6/24/2019

Reference Information

CVE: CVE-2018-20843, CVE-2019-15903

RHSA: 2020:4484