> CVE-2022-49058 [HIGH]

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PUBLISHED
2025-02-26 07:00
MODIFIED
2025-10-01 20:15
CVSS_SCORE V3
7.8
EPSS (Prob. Exploit)
0.87%
Top 40.8%
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

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: cifs: potential buffer overflow in handling symlinks Smatch printed a warning: arch/x86/crypto/poly1305_glue.c:198 poly1305_update_arch() error: __memcpy() 'dctx->buf' too small (16 vs u32max) It's caused because Smatch marks 'link_len' as untrusted since it comes from sscanf(). Add a check to ensure that 'link_len' is not larger than the size of the 'link_str' buffer.

> AFFECTED_PRODUCTS

Red Hat - Red Hat Enterprise Linux 8
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 9
Version: 5.14.0
Red Hat - Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.6 Telecommunications Update Service
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.2 Advanced Update Support
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Version: 4.18.0
Red Hat - Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Version: 5.14.0

> CVSS V3 METRICS

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

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises 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
High (H)
Divulgation totale d'informations
I (Impact Intégrité)
Integrity Impact
High (H)
Modification totale des données possible
A (Impact Disponibilité)
Availability Impact
High (H)
Interruption totale du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
High
Divulgation totale d'informations
Intégrité
High
Modification totale des données possible
Disponibilité
High
Interruption totale du service possible

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security h...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Co...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulner...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Prod...
Red Hat Security Advisory: kernel security update
An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise...
Red Hat Security Advisory: kernel security update
An update for kernel 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 Scoring System (CV...
Red Hat Security Advisory: kernel-rt security update
An update for kernel-rt 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 Scoring System...

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

cifs: potential buffer overflow in handling symlinks

AFFECTED PACKAGES:
Unknown / Unknown
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
26/02/2025 07:00
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 14:38
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:24
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:24
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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