Oracle Linux 8 : python36:3.6 (ELSA-2021-4150)

high Nessus Plugin ID 155978

Synopsis

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

Description

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-4150 advisory.

- An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the exception keyword. (CVE-2021-20270)

- In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.
(CVE-2021-27291)

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

https://linux.oracle.com/errata/ELSA-2021-4150.html

Plugin Details

Severity: High

ID: 155978

File Name: oraclelinux_ELSA-2021-4150.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/10/2021

Updated: 11/22/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2021-27291

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

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:python-nose-docs, p-cpe:/a:oracle:linux:python-pymongo-doc, p-cpe:/a:oracle:linux:python-sqlalchemy-doc, p-cpe:/a:oracle:linux:python-virtualenv-doc, p-cpe:/a:oracle:linux:python3-pymysql, p-cpe:/a:oracle:linux:python3-bson, p-cpe:/a:oracle:linux:python3-distro, p-cpe:/a:oracle:linux:python3-docs, p-cpe:/a:oracle:linux:python3-docutils, p-cpe:/a:oracle:linux:python3-nose, p-cpe:/a:oracle:linux:python3-pygments, p-cpe:/a:oracle:linux:python3-pymongo, p-cpe:/a:oracle:linux:python3-pymongo-gridfs, p-cpe:/a:oracle:linux:python3-scipy, p-cpe:/a:oracle:linux:python3-sqlalchemy, p-cpe:/a:oracle:linux:python3-virtualenv, p-cpe:/a:oracle:linux:python3-wheel, p-cpe:/a:oracle:linux:python3-wheel-wheel, p-cpe:/a:oracle:linux:python36, p-cpe:/a:oracle:linux:python36-debug, p-cpe:/a:oracle:linux:python36-devel, p-cpe:/a:oracle:linux:python36-rpm-macros

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/16/2021

Vulnerability Publication Date: 3/17/2021

Reference Information

CVE: CVE-2021-20270, CVE-2021-27291