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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 : Ruby vulnerabilities (USN-7734-1)

critical Nessus Plugin ID 261428

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7734-1 advisory.

 It was discovered that Ruby incorrectly handled certain IO stream methods. A remote attacker could use this issue to cause Ruby to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only affected Ubuntu 18.04 LTS. (CVE-2024-27280)

 It was discovered that the Ruby regex compiler incorrectly handled certain memory operations. A remote attacker could possibly use this issue to obtain sensitive memory contents. This issue only affected Ubuntu 18.04 LTS. (CVE-2024-27282)

 It was discovered that Ruby incorrectly handled parsing of certain XML characters through the REXML gem.
 An attacker could use this issue to cause Ruby to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2024-35176)

 It was discovered that Ruby incorrectly handled decompressed domain names within a DNS packet. An attacker could use this issue to cause Ruby to crash, resulting in a denial of service. (CVE-2025-24294)

Tenable has extracted the preceding description block directly from the Ubuntu 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.

See Also

https://ubuntu.com/security/notices/USN-7734-1

Plugin Details

Severity: Critical

ID: 261428

File Name: ubuntu_USN-7734-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 9/5/2025

Updated: 9/5/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2024-27280

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.3

Threat Score: 8.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:ruby2.7-dev, p-cpe:/a:canonical:ubuntu_linux:ruby3.3, p-cpe:/a:canonical:ubuntu_linux:ruby2.5, p-cpe:/a:canonical:ubuntu_linux:ruby3.0-dev, p-cpe:/a:canonical:ubuntu_linux:libruby3.3, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby2.5-dev, p-cpe:/a:canonical:ubuntu_linux:libruby2.7, p-cpe:/a:canonical:ubuntu_linux:ruby3.2-dev, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:canonical:ubuntu_linux:libruby3.2, p-cpe:/a:canonical:ubuntu_linux:libruby3.0, p-cpe:/a:canonical:ubuntu_linux:ruby2.7, p-cpe:/a:canonical:ubuntu_linux:ruby3.3-dev, p-cpe:/a:canonical:ubuntu_linux:libruby2.5, p-cpe:/a:canonical:ubuntu_linux:ruby3.0, p-cpe:/a:canonical:ubuntu_linux:ruby3.2, cpe:/o:canonical:ubuntu_linux:20.04:-:lts

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: 9/3/2025

Vulnerability Publication Date: 3/25/2024

Reference Information

CVE: CVE-2024-27280, CVE-2024-27282, CVE-2024-35176, CVE-2025-24294

USN: 7734-1