Detections
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CentOS 8 : libxml2 (CESA-2020:4479)

high Nessus Plugin ID 145881

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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-2020:4479 advisory.

 - libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c (CVE-2019-19956)

 - libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c (CVE-2019-20388)

 - libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations (CVE-2020-7595)

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 libxml2, libxml2-devel and / or python3-libxml2 packages.

See Also

https://access.redhat.com/errata/RHSA-2020:4479

Plugin Details

Severity: High

ID: 145881

File Name: centos8_RHSA-2020-4479.nasl

Version: 1.4

Type: local

Agent: unix

Published: 2/1/2021

Updated: 3/23/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-7595

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:libxml2, p-cpe:/a:centos:centos:libxml2-devel, p-cpe:/a:centos:centos:python3-libxml2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 12/24/2019

Reference Information

CVE: CVE-2019-19956, CVE-2019-20388, CVE-2020-7595

RHSA: 2020:4479