Amazon Linux AMI : python27 / python34, python35, python36 (ALAS-2020-1407)

High Nessus Plugin ID 139087

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VPR Score: 3.6

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1 allows an HTTP server to conduct Regular Expression Denial of Service (ReDoS) attacks against a client because of urllib.request.AbstractBasicAuthHandler catastrophic backtracking. (CVE-2020-8492)

Solution

Run 'yum update python27' to update your system.

Run 'yum update python34' to update your system.

Run 'yum update python35' to update your system.

Run 'yum update python36' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1407.html

Plugin Details

Severity: High

ID: 139087

File Name: ala_ALAS-2020-1407.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/07/30

Updated: 2020/08/03

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 3.6

CVSS v2.0

Base Score: 7.1

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.5

Temporal Score: 5.7

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python27, p-cpe:/a:amazon:linux:python27-debuginfo, p-cpe:/a:amazon:linux:python27-devel, p-cpe:/a:amazon:linux:python27-libs, p-cpe:/a:amazon:linux:python27-test, p-cpe:/a:amazon:linux:python27-tools, p-cpe:/a:amazon:linux:python34, p-cpe:/a:amazon:linux:python34-debuginfo, p-cpe:/a:amazon:linux:python34-devel, p-cpe:/a:amazon:linux:python34-libs, p-cpe:/a:amazon:linux:python34-test, p-cpe:/a:amazon:linux:python34-tools, p-cpe:/a:amazon:linux:python35, p-cpe:/a:amazon:linux:python35-debuginfo, p-cpe:/a:amazon:linux:python35-devel, p-cpe:/a:amazon:linux:python35-libs, p-cpe:/a:amazon:linux:python35-test, p-cpe:/a:amazon:linux:python35-tools, p-cpe:/a:amazon:linux:python36, p-cpe:/a:amazon:linux:python36-debug, p-cpe:/a:amazon:linux:python36-debuginfo, p-cpe:/a:amazon:linux:python36-devel, p-cpe:/a:amazon:linux:python36-libs, p-cpe:/a:amazon:linux:python36-test, p-cpe:/a:amazon:linux:python36-tools, cpe:/o:amazon:linux

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/07/29

Vulnerability Publication Date: 2020/01/30

Reference Information

CVE: CVE-2020-8492

ALAS: 2020-1407