RHEL 8 : python38:3.8 (RHSA-2020:4641)

critical Nessus Plugin ID 142431

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:4641 advisory.

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems.

The following packages have been upgraded to a later upstream version: python38 (3.8.3). (BZ#1847416)

Security Fix(es):

* PyYAML: command execution through python/object/apply constructor in FullLoader (CVE-2019-20477)

* python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907)

* PyYAML: arbitrary command execution through python/object/new when FullLoader is used (CVE-2020-1747)

* python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS (CVE-2020-8492)

* python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

Solution

Update the affected packages.

Plugin Details

Severity: Critical

ID: 142431

File Name: redhat-RHSA-2020-4641.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 11/4/2020

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2020-1747

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:python-six, p-cpe:/a:redhat:enterprise_linux:python38-asn1crypto, p-cpe:/a:redhat:enterprise_linux:python38-markupsafe, p-cpe:/a:redhat:enterprise_linux:python38-jinja2, p-cpe:/a:redhat:enterprise_linux:python38-cython, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2-doc, p-cpe:/a:redhat:enterprise_linux:python-wheel, p-cpe:/a:redhat:enterprise_linux:cython, p-cpe:/a:redhat:enterprise_linux:python38-wheel, p-cpe:/a:redhat:enterprise_linux:babel, p-cpe:/a:redhat:enterprise_linux:pyyaml, p-cpe:/a:redhat:enterprise_linux:python-pysocks, p-cpe:/a:redhat:enterprise_linux:python38-numpy-f2py, p-cpe:/a:redhat:enterprise_linux:python38-pyyaml, p-cpe:/a:redhat:enterprise_linux:numpy, p-cpe:/a:redhat:enterprise_linux:python-pymysql, p-cpe:/a:redhat:enterprise_linux:python-asn1crypto, p-cpe:/a:redhat:enterprise_linux:python-psycopg2, p-cpe:/a:redhat:enterprise_linux:python-psutil, p-cpe:/a:redhat:enterprise_linux:python-chardet, p-cpe:/a:redhat:enterprise_linux:python38-ply, p-cpe:/a:redhat:enterprise_linux:pytz, p-cpe:/a:redhat:enterprise_linux:python-cffi, p-cpe:/a:redhat:enterprise_linux:python38-mod_wsgi, p-cpe:/a:redhat:enterprise_linux:python38-devel, p-cpe:/a:redhat:enterprise_linux:python38-test, p-cpe:/a:redhat:enterprise_linux:scipy, p-cpe:/a:redhat:enterprise_linux:python3x-pip, p-cpe:/a:redhat:enterprise_linux:python38-debug, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2-tests, p-cpe:/a:redhat:enterprise_linux:python38-idle, p-cpe:/a:redhat:enterprise_linux:python38-psutil, p-cpe:/a:redhat:enterprise_linux:python38-six, p-cpe:/a:redhat:enterprise_linux:python38-libs, p-cpe:/a:redhat:enterprise_linux:python38-rpm-macros, p-cpe:/a:redhat:enterprise_linux:python38-pycparser, p-cpe:/a:redhat:enterprise_linux:python-jinja2, p-cpe:/a:redhat:enterprise_linux:python38-wheel-wheel, p-cpe:/a:redhat:enterprise_linux:python-requests, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:python38-tkinter, p-cpe:/a:redhat:enterprise_linux:python38-setuptools-wheel, p-cpe:/a:redhat:enterprise_linux:python38, p-cpe:/a:redhat:enterprise_linux:python38-pip-wheel, p-cpe:/a:redhat:enterprise_linux:python38-pymysql, p-cpe:/a:redhat:enterprise_linux:python38-urllib3, p-cpe:/a:redhat:enterprise_linux:python3x-setuptools, p-cpe:/a:redhat:enterprise_linux:python-pycparser, p-cpe:/a:redhat:enterprise_linux:python38-psycopg2, p-cpe:/a:redhat:enterprise_linux:python38-lxml, p-cpe:/a:redhat:enterprise_linux:python38-cryptography, p-cpe:/a:redhat:enterprise_linux:python38-pysocks, p-cpe:/a:redhat:enterprise_linux:python38-babel, p-cpe:/a:redhat:enterprise_linux:python38-numpy-doc, p-cpe:/a:redhat:enterprise_linux:python38-chardet, p-cpe:/a:redhat:enterprise_linux:python38-numpy, p-cpe:/a:redhat:enterprise_linux:python-urllib3, p-cpe:/a:redhat:enterprise_linux:python38-setuptools, p-cpe:/a:redhat:enterprise_linux:python38-pip, p-cpe:/a:redhat:enterprise_linux:python-ply, p-cpe:/a:redhat:enterprise_linux:python-cryptography, p-cpe:/a:redhat:enterprise_linux:python38-cffi, p-cpe:/a:redhat:enterprise_linux:python38-idna, p-cpe:/a:redhat:enterprise_linux:python38-requests, p-cpe:/a:redhat:enterprise_linux:python38-scipy, p-cpe:/a:redhat:enterprise_linux:python38-pytz, p-cpe:/a:redhat:enterprise_linux:mod_wsgi, p-cpe:/a:redhat:enterprise_linux:python-markupsafe, p-cpe:/a:redhat:enterprise_linux:python-lxml, p-cpe:/a:redhat:enterprise_linux:python-idna

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 1/30/2020

Reference Information

CVE: CVE-2019-20477, CVE-2019-20907, CVE-2020-14422, CVE-2020-1747, CVE-2020-8492

CWE: 20, 400, 502, 835

IAVA: 2020-A-0103-S, 2020-A-0340-S, 2021-A-0463

RHSA: 2020:4641

Detections

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