Amazon Linux 2 : ruby (ALASRUBY3.0-2023-002)

critical Nessus Plugin ID 181966

Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of ruby installed on the remote host is prior to 3.0.4-155. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2RUBY3.0-2023-002 advisory.

A double-free vulnerability was found in Ruby. The issue occurs during Regexp compilation. This flaw allows an attacker to create a Regexp object with a crafted source string that could cause the same memory to be freed twice. (CVE-2022-28738)

A buffer overrun vulnerability was found in Ruby. The issue occurs in a conversion algorithm from a String to a Float that causes process termination due to a segmentation fault, but under limited circumstances.
This flaw may cause an illegal memory read. (CVE-2022-28739)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update ruby' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALASRUBY3.0-2023-002.html

https://alas.aws.amazon.com/cve/html/CVE-2022-28738.html

https://alas.aws.amazon.com/cve/html/CVE-2022-28739.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: Critical

ID: 181966

File Name: al2_ALASRUBY3_0-2023-002.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/27/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2022-28738

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:rubygem-rss, p-cpe:/a:amazon:linux:ruby-devel, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:rubygem-irb, p-cpe:/a:amazon:linux:rubygem-test-unit, p-cpe:/a:amazon:linux:ruby-libs, p-cpe:/a:amazon:linux:rubygems, p-cpe:/a:amazon:linux:rubygems-devel, p-cpe:/a:amazon:linux:ruby-debuginfo, p-cpe:/a:amazon:linux:ruby-default-gems, p-cpe:/a:amazon:linux:rubygem-typeprof, p-cpe:/a:amazon:linux:rubygem-rake, p-cpe:/a:amazon:linux:rubygem-psych, p-cpe:/a:amazon:linux:rubygem-bigdecimal, p-cpe:/a:amazon:linux:rubygem-power_assert, p-cpe:/a:amazon:linux:rubygem-minitest, p-cpe:/a:amazon:linux:rubygem-io-console, p-cpe:/a:amazon:linux:rubygem-bundler, p-cpe:/a:amazon:linux:rubygem-rexml, p-cpe:/a:amazon:linux:rubygem-rdoc, p-cpe:/a:amazon:linux:ruby-doc, p-cpe:/a:amazon:linux:rubygem-json, p-cpe:/a:amazon:linux:ruby, p-cpe:/a:amazon:linux:rubygem-rbs

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

Exploit Ease: No known exploits are available

Patch Publication Date: 8/21/2023

Vulnerability Publication Date: 4/13/2022

Reference Information

CVE: CVE-2022-28738, CVE-2022-28739