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Amazon Linux AMI : python34 / python36 (ALAS-2018-1132)

high Nessus Plugin ID 119812

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Synopsis

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

Description

Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by contructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM.(CVE-2018-14647)

Solution

Run 'yum update python34' to update your system.

Run 'yum update python36' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2018-1132.html

Plugin Details

Severity: High

ID: 119812

File Name: ala_ALAS-2018-1132.nasl

Version: 1.4

Type: local

Agent: unix

Published: 12/21/2018

Updated: 7/15/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

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-2018-14647

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/12/2019

Vulnerability Publication Date: 9/25/2018

Reference Information

CVE: CVE-2018-14647

ALAS: 2018-1132