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Amazon Linux AMI : ruby19, ruby21 (ALAS-2020-1426)

high Nessus Plugin ID 140094

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Synopsis

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

Description

The version of ruby19 installed on the remote host is prior to 1.9.3.551-33.71. The version of ruby21 installed on the remote host is prior to 2.1.9-1.23. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1426 advisory.

 The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar toCVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application- dependent. (CVE-2020-10663)

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 ruby19' to update your system.
 Run 'yum update ruby21' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1426.html

https://access.redhat.com/security/cve/CVE-2020-10663

Plugin Details

Severity: High

ID: 140094

File Name: ala_ALAS-2020-1426.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: 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:P/A:N

CVSS Score Source: CVE-2020-10663

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:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ruby21-doc, p-cpe:/a:amazon:linux:rubygem19-io-console, p-cpe:/a:amazon:linux:ruby21-irb, p-cpe:/a:amazon:linux:rubygem19-minitest, p-cpe:/a:amazon:linux:ruby19-irb, p-cpe:/a:amazon:linux:rubygems21, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:ruby21-debuginfo, p-cpe:/a:amazon:linux:rubygem19-json, p-cpe:/a:amazon:linux:rubygem19-rdoc, p-cpe:/a:amazon:linux:rubygem21-psych, p-cpe:/a:amazon:linux:rubygem19-bigdecimal, p-cpe:/a:amazon:linux:ruby19, p-cpe:/a:amazon:linux:ruby21, p-cpe:/a:amazon:linux:rubygem21-bigdecimal, p-cpe:/a:amazon:linux:rubygem19-rake, p-cpe:/a:amazon:linux:rubygems19, p-cpe:/a:amazon:linux:ruby21-devel, p-cpe:/a:amazon:linux:ruby19-debuginfo, p-cpe:/a:amazon:linux:ruby19-libs, p-cpe:/a:amazon:linux:ruby21-libs, p-cpe:/a:amazon:linux:ruby19-devel, p-cpe:/a:amazon:linux:rubygems19-devel, p-cpe:/a:amazon:linux:rubygem21-io-console, p-cpe:/a:amazon:linux:ruby19-doc, p-cpe:/a:amazon:linux:rubygems21-devel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/26/2020

Vulnerability Publication Date: 2/13/2013

Reference Information

CVE: CVE-2020-10663

BID: 57899

ALAS: 2020-1426