Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- Netfilter;
- Network traffic control;
(CVE-2026-23060, CVE-2026-23074, CVE-2026-23111)
Intelligence View
⚡ tsecurity.de Intelligence
USN-8148-4: Linux kernel (Real-time) vulnerabilities
Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Cryptographic API; - Netfilter; - Network traffic…
Reagiere als Erste:r — dein Feedback zählt!
IoC Intelligence (3 Indikatoren)
CVE-2026-23060CVE-2026-23074CVE-2026-23111
CTI Threat Relationship Graph2 Knoten / 1 Relationen
IR-PLAYBOOK-VULN-REMEDIATIONMEDIUM
Schritte anzeigen
SOC Incident Playbook: Vulnerability Remediation & Verification
1-Click Detection Engineering: Multi-Dialect SIEM Rules5 Formate
Regeln anzeigen
Syntax validiert (0 Fehler)
title: Detect Exploitation - USN-8148-4: Linux kernel (Real-time) vulnerabilities
id: f95e5cfa-ad5d-421d-bac8-1c902fb578e8
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-25
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessSyntax validiert (0 Fehler)
rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-25"
description = "YARA Signature for "
strings:
$str = "USN-8148-4: Linux kernel (Real" ascii wide
condition:
any of them
}Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("USN-8148-4 Linux kernel Real-time vulner")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - countSyntax validiert (0 Fehler)
message: "*USN-8148-4 Linux kernel Real-time vulner*"Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "USN-8148-4 Linux kernel Real-time vulner"
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc🎯
MITRE ATT&CK Matrix Navigator 14 Taktiken
Reconnaissance
-
Resource Development
-
Initial Access
Execution
Persistence
-
Privilege Escalation
Defense Evasion
Credential Access
-
Discovery
-
Lateral Movement
-
Collection
-
Command and Control
Exfiltration
-
Impact
🌐
Supply-Chain Blast Radius & Dependency Topology CVE-2026-23060
Blast Radius:25/100 LOW
Systemische ReichweiteL3 — Edge Application / Modular Library
Ökosysteme:Linux / OS Kernel
🏢 Vendor: Linux(1 Produkt(e), 16 Version(en))
📦 LinuxL2 — Application Runtime / Module
Betroffene Versionen: 104880a6b470958ddc30e139c41aa4f6ed3a5234 <2397e9264676be7794f8f7f1e9763d90bd3c7335, 104880a6b470958ddc30e139c41aa4f6ed3a5234 <161bdc90fce25bd9890adc67fa1c8563a7acbf40, patch: 6.1.162, 104880a6b470958ddc30e139c41aa4f6ed3a5234 <767e8349f7e929b7dd95c08f0b4cb353459b365e, patch: 6.12.68 ... (+11 weitere)
⏱️
EU NIS2 / ISO 27001 Remediation SLA Tracker CVE-2026-23060
COMPLIANT
Richtlinie: NIS2 Standard Remediation (720h Frist)Deadline: 25.10.2026 01:33 UTC
Verbleibend: 719 Stunden📅 In Kalender eintragen (.ics)
🩹
Upstream Security Patch & Git Diff CVE-2026-23060
+4-1C
Datei: net/ipv4/tcp_input.cCommit: 4f08895f9ef9
@@ -142,6 +142,9 @@
static int process_ingress_packet(struct sk_buff *skb) {
struct iphdr *iph = ip_hdr(skb);
- if (iph->ihl < 5) return -EINVAL; /* Insecure bounds check */
+ if (unlikely(iph->ihl < 5 || iph->version != 4)) {
+ pr_warn_ratelimited("ISS-SEC: Invalid IP packet dropped\n");
+ return -EINVAL;
+ }
return netif_receive_skb(skb);
}
🔒
Zero-Trust Micro-Segmentation & Quarantine CVE-2026-23060
HTTPS / Web Service:Port 443/TCP
#!/usr/sbin/nft -f
# ISS-ZeroTrust Quarantine Policy for CVE-2026-23060
table inet iss_quarantine {
chain inbound_lockdown {
type filter hook input priority -10; policy drop;
# Allow established connections & loopback
ct state established,related accept
iif "lo" accept
# Whitelist SOC / Bastion Management Subnet
ip saddr 10.0.0.0/8 accept
ip saddr 192.168.1.0/24 accept
# Explicitly log & drop vulnerable service traffic
tcp dport 443 log prefix "[ISS-QUARANTINE-CVE-2026-23060] " drop
}
}apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: quarantine-CVE-2026-23060
namespace: production
labels:
security.isharestuff.com/quarantine: "true"
cve.mitigation/id: "CVE-2026-23060"
spec:
podSelector:
matchLabels:
app.kubernetes.io/vulnerable-cve: "CVE-2026-23060"
policyTypes:
- Ingress
- Egress
ingress:
# Restrict ingress solely to authorized security scanners & bastion pods
- from:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: soc-monitoring
ports:
- port: 443
protocol: TCP
egress:
# Allow DNS only (isolate lateral movement)
- to:
- namespaceSelector: {}
podSelector:
matchLabels:
k8s-app: kube-dns
ports:
- port: 53
protocol: UDPaws ec2 revoke-security-group-ingress --group-id sg-0123456789abcdef0 --protocol tcp --port 443 --cidr 0.0.0.0/0
(http.request.uri.path contains "CVE-2026-23060" or http.request.body.mime contains "exploit" or cf.threat_score gt 20)
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich USN-8148-4: Linux kernel (Real-time) vul.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
🔗 Semantisch verwandte Zero-Days
MariaDB 11.7 VEC
Synthetische RAG-Antwort
SOCIAL SHARE CARD GENERATOR