> CVE-2025-25186 [MEDIUM]

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PUBLISHED
2025-02-10 16:15
MODIFIED
2025-02-10 16:15
CVSS_SCORE V3
6.5
EPSS (Prob. Exploit)
0.63%
Top 50.6%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-04 OSV 🔗 2026-03-01 MSRC 🔗 2026-02-01

> DESCRIPTION

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Starting in version 0.3.2 and prior to versions 0.3.8, 0.4.19, and 0.5.6, there is a possibility for denial of service by memory exhaustion in `net-imap`'s response parser. At any time while the client is connected, a malicious server can send can send highly compressed `uid-set` data which is automatically read by the client's receiver thread. The response parser uses `Range#to_a` to convert the `uid-set` data into arrays of integers, with no limitation on the expanded size of the ranges. Versions 0.3.8, 0.4.19, 0.5.6, and higher fix this issue. Additional details for proper configuration of fixed versions and backward compatibility are available in the GitHub Security Advisory.

> AFFECTED_PRODUCTS

Red Hat - Red Hat Enterprise Linux 10
Version: 3.3.8
Red Hat - Red Hat Enterprise Linux 8
Red Hat - Red Hat Enterprise Linux 9
Red Hat - RHOL-5.9-RHEL-9

> CVSS V3 METRICS

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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre 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
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
None
Aucune divulgation d'informations
Intégrité
None
Aucune modification de données possible
Disponibilité
High
Interruption totale 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 SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> GITHUB SECURITY ADVISORY

GHSA-7fc5-f82f-cx69 MODERATE

Possible DoS by memory exhaustion in net-imap

AFFECTED PACKAGES:
RUBYGEMS / net-imap
>= 0.5.0, < 0.5.6
Fixed in: 0.5.6
RUBYGEMS / net-imap
>= 0.4.0, < 0.4.19
Fixed in: 0.4.19
RUBYGEMS / net-imap
>= 0.3.2, < 0.3.8
Fixed in: 0.3.8

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Net::IMAP vulnerable to possible DoS by memory exhaustion

AFFECTED PACKAGES:
Unknown / Unknown
31 versions affected
ALIASES:
GHSA-7fc5-f82f-cx69

> HISTORIQUE DES MODIFICATIONS

Première apparition
10/02/2025 16:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 15:00
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:25
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:25
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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