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Technical advisory

USN-8729-4: Linux kernel (Low Latency) vulnerabilities

Official source
EudorIA operational summary

What it means

Priority 40/100

Ubuntu ha rilasciato un aggiornamento di sicurezza (USN-8729-4) per il kernel Linux Low Latency, correggendo diverse vulnerabilità in vari sottosistemi. L'aggiornamento include patch per svariati componenti, tra cui driver, framework e protocolli di rete. La criticità è bassa, ma la patch è disponibile. Non è stato confermato un sfruttamento attivo in rete.

Why it matters

Le vulnerabilità potrebbero essere sfruttate da un attaccante per compromettere il sistema, anche se la criticità è bassa. Le PMI italiane che utilizzano sistemi basati su Linux Low Latency devono agire per ridurre la superficie esposta e garantire la sicurezza operativa.

Recommended actions

  1. Applicare immediatamente le patch disponibili per i kernel elencati
  2. Riavviare il sistema dopo l'applicazione delle patch
  3. Riconfigurare i driver e i componenti interessati per ridurre la superficie esposta
  4. Verificare la presenza di moduli kernel terzi e riconfigurarli se necessario
  5. Implementare controlli di accesso per limitare l'accesso ai sottosistemi critici
  6. Monitorare i log di sistema e le attività di rete per rilevare comportamenti anomali
  7. Valutare l'uso di Ubuntu Pro per ottenere una protezione aggiuntiva

Potential operational benefits

  • Riduzione della superficie esposta grazie alle patch applicate
  • Maggiore sicurezza operativa grazie al monitoraggio e alla segmentazione
  • Protezione aggiuntiva con Ubuntu Pro per le PMI
  • Riduzione del rischio di compromissione del sistema
Indications to confirm against the customer's technical and organisational perimeter.
Relevant controlsPatch managementFirewall NGFW / IPSMonitoraggio / SIEMSegmentazione di reteBackup & DR
AudienceITSOCCISO
Information centre

Translation in progress

Ubuntu Security

The official content is available in the original language. The Italian version will be published once automated checks are complete.

Text acquired from the source

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: - ARM32 architecture; - ARM64 architecture; - PowerPC architecture; - Compute Acceleration Framework; - Drivers core; - Bluetooth drivers; - Arm Firmware Framework for ARMv8-A(FFA); - EFI core; - GPU drivers; - Hardware monitoring drivers; - InfiniBand drivers; - Network drivers; - Microsoft Azure Network Adapter (MANA) driver; - SCSI subsystem; - SPI subsystem; - Network file systems library; - NTFS3 file system; - SMB network file system; - File systems infrastructure; - Software nodes and device properties; - Bluetooth subsystem; - Netfilter; - Tracing infrastructure; - io_uring subsystem; - IRQ subsystem; - KProbes tracing; - Memory management; - B.A.T.M.A.N. meshing protocol; - Ethernet bridge; - Networking core; - IPv4 networking; - IPv6 networking; - Multipath TCP; - Phonet protocol; - SMC sockets; - TLS protocol; - Unix domain sockets; - VMware vSockets driver; - Wireless networking; - Key management; - Linux Security Modules (LSM) Framework; - ALSA framework; - AudioScience HPI driver; (CVE-2025-71289, CVE-2026-23469, CVE-2026-31420, CVE-2026-31486, CVE-2026-31560, CVE-2026-46158, CVE-2026-46170, CVE-2026-46275, CVE-2026-46315, CVE-2026-52912, CVE-2026-52915, CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52921, CVE-2026-52922, CVE-2026-52926, CVE-2026-52941, CVE-2026-53357, CVE-2026-64015, CVE-2026-64018, CVE-2026-64025, CVE-2026-64029, CVE-2026-64032, CVE-2026-64033, CVE-2026-64034, CVE-2026-64039, CVE-2026-64046, CVE-2026-64047, CVE-2026-64048, CVE-2026-64051, CVE-2026-64055, CVE-2026-64056, CVE-2026-64064, CVE-2026-64073, CVE-2026-64083, CVE-2026-64084, CVE-2026-64085, C

Source
Ubuntu Security Notices
Publishing entity
Ubuntu Security
Entity type
vendor security
Area
Global
Original language
en · translation in preparation
Publication
22/09/2026 15:19
MITRE ATT&CK
T1190, T1078, T1486
CVE
CVE-2025-71289, CVE-2026-23469, CVE-2026-31420, CVE-2026-31486, CVE-2026-31560, CVE-2026-46158, CVE-2026-46170, CVE-2026-46275, CVE-2026-46315, CVE-2026-52912, CVE-2026-52915, CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52921, CVE-2026-52922, CVE-2026-52926, CVE-2026-52941, CVE-2026-53357, CVE-2026-64015
Classification
Low
Technical scope

Affected products and versions

Verification in progress
Information not yet acquired.

The collector will check NVD and the available official vendor advisories.

Open the original source