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AlmaLinux 9 : python3.9 (ALSA-2023:0953)

high Nessus Plugin ID 172005

Synopsis

The remote AlmaLinux host is missing a security update.

Description

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2023:0953 advisory.

 - An issue was discovered in Python before 3.11.1. An unnecessary quadratic algorithm exists in one path when processing some inputs to the IDNA (RFC 3490) decoder, such that a crafted, unreasonably long name being presented to the decoder could lead to a CPU denial of service. Hostnames are often supplied by remote servers that could be controlled by a malicious actor; in such a scenario, they could trigger excessive CPU consumption on the client attempting to make use of an attacker-supplied supposed hostname.
 For example, the attack payload could be placed in the Location header of an HTTP response with status code 302. A fix is planned in 3.11.1, 3.10.9, 3.9.16, 3.8.16, and 3.7.16. (CVE-2022-45061)

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://errata.almalinux.org/9/ALSA-2023-0953.html

Plugin Details

Severity: High

ID: 172005

File Name: alma_linux_ALSA-2023-0953.nasl

Version: 1.4

Type: local

Published: 2/28/2023

Updated: 9/28/2023

Supported Sensors: Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2022-45061

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:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:python-unversioned-command, p-cpe:/a:alma:linux:python3-tkinter, p-cpe:/a:alma:linux:python3-devel, p-cpe:/a:alma:linux:python3-libs, p-cpe:/a:alma:linux:python3-idle, p-cpe:/a:alma:linux:python3-debug, p-cpe:/a:alma:linux:python3-test, p-cpe:/a:alma:linux:python3

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/28/2023

Vulnerability Publication Date: 11/9/2022

Reference Information

CVE: CVE-2022-45061

CWE: 400

IAVA: 2022-A-0467-S, 2023-A-0061-S