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FreeBSD : tauthon -- Regular Expression Denial of Service (c7855866-c511-11eb-ae1d-b42e991fc52e)

medium Nessus Plugin ID 150311

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

The :class:`~urllib.request.AbstractBasicAuthHandler` class of the :mod:`urllib.request` module uses an inefficient regular expression which can be exploited by an attacker to cause a denial of service

Solution

Update the affected package.

See Also

http://www.nessus.org/u?0b8dcce1

Plugin Details

Severity: Medium

ID: 150311

File Name: freebsd_pkg_c7855866c51111ebae1db42e991fc52e.nasl

Version: 1.3

Type: local

Published: 6/7/2021

Updated: 12/27/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-8492

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:tauthon, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/4/2021

Vulnerability Publication Date: 1/30/2020

Reference Information

CVE: CVE-2020-8492