Debian: DSA-4135-1: samba security update

    Date13 Mar 2018
    CategoryDebian
    5356
    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-4135-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    March 13, 2018                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : samba
    CVE ID         : CVE-2018-1050 CVE-2018-1057
    
    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-2018-1050
    
        It was discovered that Samba is prone to a denial of service
        attack when the RPC spoolss service is configured to be run as an
        external daemon.
    
        https://www.samba.org/samba/security/CVE-2018-1050.html
    
    CVE-2018-1057
    
        Bjoern Baumbach from Sernet discovered that on Samba 4 AD DC the
        LDAP server incorrectly validates permissions to modify passwords
        over LDAP allowing authenticated users to change any other users
        passwords, including administrative users.
    
        https://www.samba.org/samba/security/CVE-2018-1057.html
        https://wiki.samba.org/index.php/CVE-2018-1057
    
    For the oldstable distribution (jessie), CVE-2018-1050 will be addressed
    in a later update. Unfortunately the changes required to fix
    CVE-2018-1057 for Debian oldstable are too invasive to be backported.
    Users using Samba as an AD-compatible domain controller are encouraged
    to apply the workaround described in the Samba wiki and upgrade to
    Debian stretch.
    
    For the stable distribution (stretch), these problems have been fixed in
    version 2:4.5.12+dfsg-2+deb9u2.
    
    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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