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FreeBSD : Python -- multiple vulnerabilities (33c05d57-bf6e-11ea-ba1e-0800273f78d3)

medium Nessus Plugin ID 138125

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Synopsis

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

Description

Python reports :

The AbstractBasicAuthHandler class of the urllib.request module uses an inefficient regular expression which can be exploited by an attacker to cause a denial of service. Fix the regex to prevent the catastrophic backtracking. Vulnerability reported by Ben Caller and Matt Schwager.

Disallow control characters in hostnames in http.client, addressing CVE-2019-18348. Such potentially malicious header injection URLs now cause a InvalidURL to be raised.

Disallow CR or LF in email.headerregistry.Address arguments to guard against header injection attacks.

Solution

Update the affected package.

See Also

https://docs.python.org/3.7/whatsnew/changelog.html#changelog

http://www.nessus.org/u?00a7ad2a

Plugin Details

Severity: Medium

ID: 138125

File Name: freebsd_pkg_33c05d57bf6e11eaba1e0800273f78d3.nasl

Version: 1.4

Type: local

Published: 7/6/2020

Updated: 3/4/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

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

CVSS Score Source: CVE-2019-18348

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:python37, 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: 7/6/2020

Vulnerability Publication Date: 10/24/2019

Reference Information

CVE: CVE-2019-18348, CVE-2020-8492