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Ubuntu 18.04 LTS / 22.04 LTS : Ruby vulnerability (USN-5806-2)

high Nessus Plugin ID 170415

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Synopsis

The remote Ubuntu host is missing a security update.

Description

The remote Ubuntu 18.04 LTS / 22.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5806-2 advisory.

 USN-5806-1 fixed vulnerabilities in Ruby. This update fixes the problem for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and

 Ubuntu 22.10.

 Original advisory details:

 Hiroshi Tokumaru discovered that Ruby did not properly handle certain

 user input for applications which generate HTTP responses using cgi gem.

 An attacker could possibly use this issue to maliciously modify the

 response a user would receive from a vulnerable application.

Tenable has extracted the preceding description block directly from the Ubuntu 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

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-5806-2

Plugin Details

Severity: High

ID: 170415

File Name: ubuntu_USN-5806-2.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/23/2023

Updated: 8/28/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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

CPE: p-cpe:/a:canonical:ubuntu_linux:libruby3.0, p-cpe:/a:canonical:ubuntu_linux:ruby2.5, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libruby2.5, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby2.5-dev, p-cpe:/a:canonical:ubuntu_linux:ruby3.0-dev, p-cpe:/a:canonical:ubuntu_linux:ruby3.0

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/23/2023

Vulnerability Publication Date: 11/18/2022

Reference Information

CVE: CVE-2021-33621

USN: 5806-2