> CVE-2022-49561

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PUBLISHED
2025-02-26 07:01
MODIFIED
2025-02-26 07:01
EPSS (Prob. Exploit)
0.82%
Top 43.1%
DATA SOURCES:
NVD 🔗 2025-10-18 RED HAT 🔗 2025-10-18 CVE PROJECT 🔗 2026-01-19 FIRST EPSS 🔗 2026-10-25 OSV 🔗 2026-03-01

> DESCRIPTION

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.

> 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 SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

netfilter: conntrack: re-fetch conntrack after insertion

AFFECTED PACKAGES:
Unknown / Unknown
1183 versions affected
Linux / Kernel

> HISTORIQUE DES MODIFICATIONS

Première apparition
26/02/2025 07:01
Source: NVD
📊 ENRICHISSEMENT 18/10/2025 14:38
CVEPROJECT
Champ modifié: CVE Project
Ancienne valeur:
Non
Nouvelle valeur:
Oui
📊 ENRICHISSEMENT 18/10/2025 12:23
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 18/10/2025 12:23
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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