Amazon Linux AMI : python35 (ALAS-2018-1101)

high Nessus Plugin ID 118805
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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 python35' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2018-1101.html

Plugin Details

Severity: High

ID: 118805

File Name: ala_ALAS-2018-1101.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/8/2018

Updated: 4/14/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: 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, 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: 11/5/2018

Vulnerability Publication Date: 9/25/2018

Reference Information

CVE: CVE-2018-14647

ALAS: 2018-1101