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Amazon Linux 2 : ruby (ALAS-2023-2084)

medium Nessus Plugin ID 177188

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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 2.0.0.648-36. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2084 advisory.

 - A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2. (CVE-2023-28756)

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 ruby' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2023-2084.html

https://alas.aws.amazon.com/cve/html/CVE-2023-28756.html

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

Plugin Details

Severity: Medium

ID: 177188

File Name: al2_ALAS-2023-2084.nasl

Version: 1.0

Type: local

Agent: unix

Published: 6/13/2023

Updated: 6/13/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

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-2023-28756

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ruby, p-cpe:/a:amazon:linux:ruby-debuginfo, p-cpe:/a:amazon:linux:ruby-devel, p-cpe:/a:amazon:linux:ruby-doc, p-cpe:/a:amazon:linux:ruby-irb, p-cpe:/a:amazon:linux:ruby-libs, p-cpe:/a:amazon:linux:ruby-tcltk, p-cpe:/a:amazon:linux:rubygem-bigdecimal, p-cpe:/a:amazon:linux:rubygem-io-console, p-cpe:/a:amazon:linux:rubygem-json, p-cpe:/a:amazon:linux:rubygem-minitest, p-cpe:/a:amazon:linux:rubygem-psych, p-cpe:/a:amazon:linux:rubygem-rake, p-cpe:/a:amazon:linux:rubygem-rdoc, p-cpe:/a:amazon:linux:rubygems, p-cpe:/a:amazon:linux:rubygems-devel, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/7/2023

Vulnerability Publication Date: 3/30/2023

Reference Information

CVE: CVE-2023-28756