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Amazon Linux AMI : python27 (ALAS-2020-1427)

high Nessus Plugin ID 140085

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Synopsis

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

Description

The version of python27 installed on the remote host is prior to 2.7.18-2.139. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1427 advisory.

 In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation. (CVE-2019-20907)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update python27' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1427.html

https://access.redhat.com/security/cve/CVE-2019-20907

Plugin Details

Severity: High

ID: 140085

File Name: ala_ALAS-2020-1427.nasl

Version: 1.4

Type: local

Agent: unix

Published: 8/31/2020

Updated: 12/11/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-20907

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:python27-libs, p-cpe:/a:amazon:linux:python27-devel, p-cpe:/a:amazon:linux:python27-test, p-cpe:/a:amazon:linux:python27, p-cpe:/a:amazon:linux:python27-debuginfo, p-cpe:/a:amazon:linux:python27-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: 8/27/2020

Vulnerability Publication Date: 7/13/2020

Reference Information

CVE: CVE-2019-20907

ALAS: 2020-1427

IAVA: 2020-A-0340-S