Rocky Linux 8 [CIQ] Security Update: ruby / ruby-debuginfo / ruby-debugsource / ruby-default-gems / etc Multiple Vulnerabilities (crlsa-2023_3821)

high Nessus Plugin ID 353476

Synopsis

The Rocky Linux host is missing one or more security updates.

Description

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-2023_3821 advisory.

* ruby/cgi-gem: HTTP response splitting in CGI (CVE-2021-33621)

* ruby: ReDoS vulnerability in URI (CVE-2023-28755)

* ruby: ReDoS vulnerability in Time (CVE-2023-28756)

Tenable has extracted the preceding description block directly from the CIQ 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

Update the affected packages based on the guidance in CIQ advisory crlsa-2023_3821.

Plugin Details

Severity: High

ID: 353476

File Name: ciq_rocky_linux_8_crlsa-2023_3821.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.12

Vendor

Vendor Severity: Unknown

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 7

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

CVSS Score Source: CVE-2021-33621

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/OS/extended-third-party

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/31/2023

Vulnerability Publication Date: 11/18/2022

Reference Information

CVE: CVE-2021-33621, CVE-2023-28755, CVE-2023-28756

Detections

Analytics