Alert GCSA-22013 - Aggiornamento di sicurezza per Samba server

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   alert ID: GCSA-22013
       data: 02 febbraio 2022
     titolo: Aggiornamento di sicurezza per Samba server

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:: Descrizione del problema

   Il team di Samba ha rilasciato nuove versioni del server Samba
   (SMB/CIFS file, print, and login server for Unix),
   con le quali risolvere alcune vulnerabilita' presenti
   in varie versioni del software.

   Maggiori informazioni sono disponibili alla sezione "Riferimenti".


:: Software interessato

   Samba file server versioni precedenti alla 4.15.5
   Samba file server versioni precedenti alla 4.14.12
   Samba file server versioni precedenti alla 4.13.17


:: Impatto

   Esecuzione remota di codice arbitrario (RCE)
   Information leak
   Security Feature Bypass (SFB)


:: 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-4.15.5.html
   https://www.samba.org/samba/history/samba-4.14.12.html
   https://www.samba.org/samba/history/samba-4.13.17.html
   https://www.samba.org/samba/download/


:: Riferimenti

   Samba Announcement
   https://www.samba.org/samba/security/CVE-2021-44142.html
   https://www.samba.org/samba/security/CVE-2021-44141.html
   https://www.samba.org/samba/security/CVE-2022-0336.html

   CERT Coordination Center
   https://kb.cert.org/vuls/id/119678

   Red Hat - Security Advisory
   https://access.redhat.com/errata/RHSA-2022:0328
   https://access.redhat.com/errata/RHSA-2022:0329
   https://access.redhat.com/errata/RHSA-2022:0330
   https://access.redhat.com/errata/RHSA-2022:0331
   https://access.redhat.com/errata/RHSA-2022:0332

   Ubuntu Security Notice
   https://ubuntu.com/security/notices/USN-5260-1
   https://ubuntu.com/security/notices/USN-5260-2

   Trend Micro
   https://www.trendmicro.com/en_us/research/22/b/the-samba-vulnerability-what-is-cve-2021-44142-and-how-to-fix-it.html

   Zero Day Initiative
   https://www.zerodayinitiative.com/blog/2022/2/1/cve-2021-44142-details-on-a-samba-code-execution-bug-demonstrated-at-pwn2own-austin

   Bleeping Computer
   https://www.bleepingcomputer.com/news/security/samba-bug-can-let-remote-attackers-execute-code-as-root/

   Mitre's CVE ID
   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44142
   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44141
   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-0336


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