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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