Alert GCSA-26097 - Aggiornamento di sicurezza per Samba server

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   alert ID: GCSA-26097
       data: 29 maggio 2026
     titolo: Aggiornamento di sicurezza per Samba server

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:: Descrizione del problema

   Sono state rilasciate nuove versioni del server Samba
   (SMB/CIFS file, print, and login server for Unix),
   con le quali vengono risolte alcune vulnerabilita',
   delle quali due con gravita' "critica" e tre con gravita' "alta".

   Maggiori informazioni sono disponibili alla sezione "Riferimenti".


:: Software interessato

   Samba file server versioni precedenti alla 4.24.3
   Samba file server versioni precedenti alla 4.23.8
   Samba file server versioni precedenti alla 4.22.10


:: Impatto

   Bypass delle funzionalita' di sicurezza (SFB)
   Denial of Service (DoS)
   Esecuzione remota di codice arbitrario (RCE)


:: Soluzioni

   Applicare le seguenti patch

   https://www.samba.org/samba/history/security.html

   oppure aggiornare alle ultime versioni

   https://www.samba.org/samba/history/samba-4.24.3.html
   https://www.samba.org/samba/history/samba-4.23.8.html
   https://www.samba.org/samba/history/samba-4.22.10.html
   https://www.samba.org/samba/download/


:: Riferimenti

   Samba Announcement
   https://www.samba.org/samba/security/CVE-2026-4408.html
   https://www.samba.org/samba/security/CVE-2026-4480.html
   https://www.samba.org/samba/security/CVE-2026-2340.html
   https://www.samba.org/samba/security/CVE-2026-3012.html
   https://www.samba.org/samba/security/CVE-2026-3238.html
   https://www.samba.org/samba/security/CVE-2026-1933.html


   Mitre's CVE ID
   https://www.cve.org/CVERecord?id=CVE-2026-4408
   https://www.cve.org/CVERecord?id=CVE-2026-4480
   https://www.cve.org/CVERecord?id=CVE-2026-2340
   https://www.cve.org/CVERecord?id=CVE-2026-3012
   https://www.cve.org/CVERecord?id=CVE-2026-3238
   https://www.cve.org/CVERecord?id=CVE-2026-1933

   Debian
   https://lists.debian.org/debian-security-announce/2026/msg00208.html
   https://security-tracker.debian.org/tracker/DSA-6297-1

   Ubuntu
   https://ubuntu.com/security/notices/USN-8306-1


GARR CERT Security Alert -  subscribe/unsubscribe:
http://www.cert.garr.it/alert/ricevi-gli-alert-di-cert
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