Detections
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Amazon Linux AMI : python34, python36, python35 (ALAS-2020-1432)
high Nessus Plugin ID 140207
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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 a vulnerability as referenced in the ALAS-2020-1432 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)
- Lib/ipaddress.py in Python through 3.8.3 improperly computes hash values in the IPv4Interface and IPv6Interface classes, which might allow a remote attacker to cause a denial of service if an application is affected by the performance of a dictionary containing IPv4Interface or IPv6Interface objects, and this attacker can cause many dictionary entries to be created. This is fixed in: v3.5.10, v3.5.10rc1; v3.6.12;
v3.7.9; v3.8.4, v3.8.4rc1, v3.8.5, v3.8.6, v3.8.6rc1; v3.9.0, v3.9.0b4, v3.9.0b5, v3.9.0rc1, v3.9.0rc2.
(CVE-2020-14422)
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 python34' to update your system.Run 'yum update python36' to update your system.
Run 'yum update python35' to update your system.
See Also
https://alas.aws.amazon.com/ALAS-2020-1432.html
https://alas.aws.amazon.com/../../faqs.html
Plugin Details
Severity: High
ID: 140207
File Name: ala_ALAS-2020-1432.nasl
Version: 1.3
Type: local
Agent: unix
Published: 9/4/2020
Updated: 3/21/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless 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-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:python36-devel, p-cpe:/a:amazon:linux:python35-tools, p-cpe:/a:amazon:linux:python34-libs, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:python36, p-cpe:/a:amazon:linux:python35-debuginfo, p-cpe:/a:amazon:linux:python36-debuginfo, p-cpe:/a:amazon:linux:python36-tools, p-cpe:/a:amazon:linux:python35-devel, p-cpe:/a:amazon:linux:python35-test, p-cpe:/a:amazon:linux:python36-libs, p-cpe:/a:amazon:linux:python34, p-cpe:/a:amazon:linux:python36-debug, p-cpe:/a:amazon:linux:python34-devel, p-cpe:/a:amazon:linux:python34-debuginfo, p-cpe:/a:amazon:linux:python34-tools, p-cpe:/a:amazon:linux:python35, p-cpe:/a:amazon:linux:python36-test, p-cpe:/a:amazon:linux:python35-libs, 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: 9/3/2020
Vulnerability Publication Date: 6/18/2020
Reference Information
CVE: CVE-2019-20907, CVE-2020-14422
ALAS: 2020-1432