> CVE-2025-27219 [MEDIUM]

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PUBLISHED
2025-03-04 00:15
MODIFIED
2025-03-05 14:08
CVSS_SCORE V3
5.8
EPSS (Prob. Exploit)
0.85%
Top 41.6%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-11-08 GITHUB 🔗 2026-11-04 OSV 🔗 2026-11-08 MSRC 🔗 2026-02-01

> DESCRIPTION

In the CGI gem before 0.4.2 for Ruby, the CGI::Cookie.parse method in the CGI library contains a potential Denial of Service (DoS) vulnerability. The method does not impose any limit on the length of the raw cookie value it processes. This oversight can lead to excessive resource consumption when parsing extremely large cookies.

> AFFECTED_PRODUCTS

Ruby-Lang - Cgi
< 0.3.5.1
Ruby-Lang - Cgi
>= 0.4.0 < 0.4.2
Ruby-Lang - Cgi
Version: 0.3.6

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
None (N)
Aucune authentification requise
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
None (N)
Aucune divulgation d'informations
I (Impact Intégrité)
Integrity Impact
None (N)
Aucune modification de données possible
A (Impact Disponibilité)
Availability Impact
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
Low
Interruption partielle du service possible

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: ruby:3.3 security update
An update for the ruby:3.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scori...
Red Hat Security Advisory: ruby security update
An update for ruby is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVS...
Red Hat Security Advisory: ruby:3.3 security update
An update for the ruby:3.3 module is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scori...
Red Hat Security Advisory: ruby:3.1 security update
An update for the ruby:3.1 module is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scori...
Red Hat Security Advisory: ruby security update
An update for ruby is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS...
Red Hat Security Advisory: ruby:3.1 security update
An update for the ruby:3.1 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scori...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> GITHUB SECURITY ADVISORY

GHSA-gh9q-2xrm-x6qv MODERATE

CGI has Denial of Service (DoS) potential in Cookie.parse

AFFECTED PACKAGES:
RUBYGEMS / cgi
>= 0.4.0, < 0.4.2
Fixed in: 0.4.2
RUBYGEMS / cgi
= 0.3.6
Fixed in: 0.3.7
RUBYGEMS / cgi
< 0.3.5.1
Fixed in: 0.3.5.1

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

AFFECTED PACKAGES:
Unknown / Unknown
14 versions affected
ALIASES:
GHSA-gh9q-2xrm-x6qv

> HISTORIQUE DES MODIFICATIONS

Première apparition
04/03/2025 00:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 15:01
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:20
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:20
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 3 Dernière mise à jour: 1 year ago
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