Debian: DSA-4345-1: samba security update

    Date27 Nov 2018
    CategoryDebian
    7262
    Posted ByAnthony Pell
    Several vulnerabilities have been discovered in Samba, a SMB/CIFS file, print, and login server for Unix. The Common Vulnerabilities and Exposures project identifies the following issues:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4345-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    November 27, 2018                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : samba
    CVE ID         : CVE-2018-14629 CVE-2018-16841 CVE-2018-16851
    
    Several vulnerabilities have been discovered in Samba, a SMB/CIFS file,
    print, and login server for Unix. The Common Vulnerabilities and
    Exposures project identifies the following issues:
    
    CVE-2018-14629
    
        Florian Stuelpner discovered that Samba is vulnerable to
        infinite query recursion caused by CNAME loops, resulting in
        denial of service.
    
        https://www.samba.org/samba/security/CVE-2018-14629.html
    
    CVE-2018-16841
    
        Alex MacCuish discovered that a user with a valid certificate or
        smart card can crash the Samba AD DC's KDC when configured to accept
        smart-card authentication.
    
        https://www.samba.org/samba/security/CVE-2018-16841.html
    
    CVE-2018-16851
    
        Garming Sam of the Samba Team and Catalyst discovered a NULL pointer
        dereference vulnerability in the Samba AD DC LDAP server allowing a
        user able to read more than 256MB of LDAP entries to crash the Samba
        AD DC's LDAP server.
    
        https://www.samba.org/samba/security/CVE-2018-16851.html
    
    For the stable distribution (stretch), these problems have been fixed in
    version 2:4.5.12+dfsg-2+deb9u4.
    
    We recommend that you upgrade your samba packages.
    
    For the detailed security status of samba please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/samba
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
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