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Amazon Linux AMI : python36 (ALAS-2020-1428)

medium Nessus Plugin ID 140087

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Synopsis

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

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1428 advisory.

 - In the GNU C Library (aka glibc or libc6) through 2.28, the getaddrinfo function would successfully parse a string that contained an IPv4 address followed by whitespace and arbitrary characters, which could lead applications to incorrectly assume that it had parsed a valid string, without the possibility of embedded HTTP headers or other potentially dangerous substrings. (CVE-2016-10739)

 - An issue was discovered in urllib2 in Python 2.x through 2.7.17 and urllib in Python 3.x through 3.8.0.
 CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r (specifically in the host component of a URL) followed by an HTTP header. This is similar to the CVE-2019-9740 query string issue and the CVE-2019-9947 path string issue.
 (This is not exploitable when glibc has CVE-2016-10739 fixed.) (CVE-2019-18348)

 - 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)

 - An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
 CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r (specifically in the query string after a ? character) followed by an HTTP header or a Redis command. (CVE-2019-9740)

 - An issue was discovered in urllib2 in Python 2.x through 2.7.16 and urllib in Python 3.x through 3.7.3.
 CRLF injection is possible if the attacker controls a url parameter, as demonstrated by the first argument to urllib.request.urlopen with \r (specifically in the path component of a URL that lacks a ? character) followed by an HTTP header or a Redis command. This is similar to the CVE-2019-9740 query string issue.
 (CVE-2019-9947)

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 python36' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1428.html

https://access.redhat.com/security/cve/CVE-2019-18348

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

Plugin Details

Severity: Medium

ID: 140087

File Name: ala_ALAS-2020-1428.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/31/2020

Updated: 2/22/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2016-10739

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2019-9947

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/27/2020

Vulnerability Publication Date: 1/21/2019

Reference Information

CVE: CVE-2016-10739, CVE-2019-18348, CVE-2019-20907, CVE-2019-9740, CVE-2019-9947

BID: 106672, 107466, 107555

ALAS: 2020-1428

IAVA: 2020-A-0340-S