CentOS 7 : libxml2 (CESA-2020:3996)

high Nessus Plugin ID 141590

Synopsis

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

Description

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:3996 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 packages.

See Also

http://www.nessus.org/u?0e45e7ae

https://cwe.mitre.org/data/definitions/401.html

https://cwe.mitre.org/data/definitions/772.html

https://cwe.mitre.org/data/definitions/835.html

Plugin Details

Severity: High

ID: 141590

File Name: centos_RHSA-2020-3996.nasl

Version: 1.4

Type: local

Agent: unix

Published: 10/20/2020

Updated: 11/30/2020

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: 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: p-cpe:/a:centos:centos:libxml2, cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:libxml2-static, p-cpe:/a:centos:centos:libxml2-python, p-cpe:/a:centos:centos:libxml2-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/20/2020

Vulnerability Publication Date: 12/24/2019

Reference Information

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

CWE: 401, 772, 835

RHSA: 2020:3996