> CVE-2025-5987 [MEDIUM]

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PUBLISHED
2025-07-07 15:15
MODIFIED
2025-08-22 13:11
CVSS_SCORE V3
5.0
EPSS (Prob. Exploit)
1.73%
Top 22.3%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-11-08 OSV 🔗 2026-11-08 MSRC 🔗 2026-06-01

> DESCRIPTION

A flaw was found in libssh when using the ChaCha20 cipher with the OpenSSL library. If an attacker manages to exhaust the heap space, this error is not detected and may lead to libssh using a partially initialized cipher context. This occurs because the OpenSSL error code returned aliases with the SSH_OK code, resulting in libssh not properly detecting the error returned by the OpenSSL library. This issue can lead to undefined behavior, including compromised data confidentiality and integrity or crashes.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/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
High (H)
Conditions spécifiques doivent être réunies pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
Low
Interruption partielle du service possible

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: libssh security update
An update for libssh 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 (C...
Red Hat Security Advisory: libssh security update
An update for libssh 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 (CV...
Red Hat Security Advisory: libssh security update
An update for libssh is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulner...
Red Hat Security Advisory: libssh security update
An update for libssh is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulner...
Red Hat Security Advisory: libssh security update
An update for libssh is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulne...
Red Hat Security Advisory: libssh security update
An update for libssh is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Com...
Red Hat Security Advisory: OpenShift Container Platform 4.17.47 bug fix and security update
Red Hat OpenShift Container Platform release 4.17.47 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.20.12 bug fix and security update
Red Hat OpenShift Container Platform release 4.20.12 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.14.61 bug fix and security update
Red Hat OpenShift Container Platform release 4.14.61 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: OpenShift Container Platform 4.16.56 bug fix and security update
Red Hat OpenShift Container Platform release 4.16.56 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.18.32 bug fix and security update
Red Hat OpenShift Container Platform release 4.18.32 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: OpenShift Container Platform 4.19.23 bug fix and security update
Red Hat OpenShift Container Platform release 4.19.23 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...
Red Hat Security Advisory: OpenShift Container Platform 4.15.61 bug fix and security update
Red Hat OpenShift Container Platform release 4.15.61 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red...
Red Hat Security Advisory: OpenShift Container Platform 4.13.64 bug fix and security update
Red Hat OpenShift Container Platform release 4.13.64 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red H...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Libssh: invalid return code for chacha20 poly1305 with openssl backend

AFFECTED PACKAGES:
Unknown / Unknown

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/07/2025 15:15
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 15:05
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:16
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:16
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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