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Linux Distros Unpatched Vulnerability : CVE-2025-27220

high Nessus Plugin ID 232149

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - In the CGI gem before 0.4.2 for Ruby, a Regular Expression Denial of Service (ReDoS) vulnerability exists in the Util#escapeElement method. (CVE-2025-27220)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2025-27220

https://security-tracker.debian.org/tracker/CVE-2025-27220

https://ubuntu.com/security/CVE-2025-27220

Plugin Details

Severity: High

ID: 232149

File Name: unpatched_CVE_2025_27220.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 3/6/2025

Updated: 9/1/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

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-2025-27220

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:ruby-irb, p-cpe:/a:centos:centos:rubygem-racc, p-cpe:/a:redhat:enterprise_linux:rubygem-irb, p-cpe:/a:centos:centos:rubygem-rexml, p-cpe:/a:redhat:enterprise_linux:rubygem-rake, p-cpe:/a:redhat:enterprise_linux:rubygem-rexml, p-cpe:/a:redhat:enterprise_linux:rubygem-rdoc, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:rubygem-rdoc, p-cpe:/a:redhat:enterprise_linux:ruby-devel, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:centos:centos:rubygem-rbs, p-cpe:/a:centos:centos:rubygem-rake, p-cpe:/a:centos:centos:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygems-devel, p-cpe:/a:redhat:enterprise_linux:rubygem-test-unit, p-cpe:/a:redhat:enterprise_linux:ruby, p-cpe:/a:centos:centos:ruby-devel, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:rubygem-irb, p-cpe:/a:redhat:enterprise_linux:rubygem-json, p-cpe:/a:redhat:enterprise_linux:ruby-bundled-gems, p-cpe:/a:canonical:ubuntu_linux:jruby, p-cpe:/a:centos:centos:rubygem-bigdecimal, p-cpe:/a:centos:centos:rubygem-power_assert, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:rubygems, p-cpe:/a:centos:centos:ruby, p-cpe:/a:centos:centos:rubygem-typeprof, p-cpe:/a:centos:centos:rubygem-json, p-cpe:/a:centos:centos:ruby-default-gems, p-cpe:/a:redhat:enterprise_linux:ruby-doc, p-cpe:/a:centos:centos:rubygems, p-cpe:/a:redhat:enterprise_linux:rubygem-psych, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:redhat:enterprise_linux:rubygem-bigdecimal, cpe:/o:canonical:ubuntu_linux:25.04, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:centos:centos:rubygem-test-unit, p-cpe:/a:centos:centos:rubygem-psych, p-cpe:/a:redhat:enterprise_linux:rubygem-rss, p-cpe:/a:redhat:enterprise_linux:ruby-default-gems, p-cpe:/a:redhat:enterprise_linux:rubygem-typeprof, p-cpe:/a:redhat:enterprise_linux:rubygem-minitest, p-cpe:/a:redhat:enterprise_linux:rubygem-power_assert, p-cpe:/a:centos:centos:rubygem-io-console, p-cpe:/a:debian:debian_linux:ruby3.1, p-cpe:/a:redhat:enterprise_linux:rubygem-io-console, p-cpe:/a:redhat:enterprise_linux:rubygem-rbs, p-cpe:/a:centos:centos:ruby-doc, p-cpe:/a:centos:centos:rubygem-bundler, p-cpe:/a:redhat:enterprise_linux:rubygem-bundler, p-cpe:/a:redhat:enterprise_linux:ruby-libs, p-cpe:/a:redhat:enterprise_linux:rubygem-racc, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:centos:centos:rubygem-rss, p-cpe:/a:centos:centos:rubygems-devel, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:redhat:enterprise_linux:ruby-irb, p-cpe:/a:centos:centos:ruby-libs, p-cpe:/a:centos:centos:ruby-bundled-gems

Required KB Items: Host/OS/identifier, Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 3/3/2025

Reference Information

CVE: CVE-2025-27220