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             AUSCERT External Security Bulletin Redistribution

                     samba -- multiple vulnerabilities
                              15 August 2018


        AusCERT Security Bulletin Summary

Product:           samba
Publisher:         FreeBSD
Operating System:  FreeBSD
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
                   Access Confidential Data        -- Remote/Unauthenticated      
                   Reduced Security                -- Existing Account            
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-10919 CVE-2018-10918 CVE-2018-10858
                   CVE-2018-1140 CVE-2018-1139 

Reference:         ASB-2018.0137

Original Bulletin: 

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FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports

samba -- multiple vulnerabilities

Affected packages
  samba46 < 4.6.16
  samba47 < 4.7.9
  samba48 < 4.8.4


VuXML ID  c4e9a427-9fc2-11e8-802a-000c29a1e3ec
Discovery 2018-08-14
Entry     2018-08-14

The samba project reports:

    Samba releases 4.7.0 to 4.8.3 (inclusive) contain an error which allows
    authentication using NTLMv1 over an SMB1 transport (either directory or via
    NETLOGON SamLogon calls from a member server), even when NTLMv1 is
    explicitly disabled on the server.

    Missing input sanitization checks on some of the input parameters to LDB
    database layer cause the LDAP server and DNS server to crash when following
    a NULL pointer.

    Samba releases 3.2.0 to 4.8.3 (inclusive) contain an error in libsmbclient
    that could allow a malicious server to overwrite client heap memory by
    returning an extra long filename in a directory listing.

    Missing database output checks on the returned directory attributes from
    the LDB database layer cause the DsCrackNames call in the DRSUAPI server to
    crash when following a NULL pointer.

    All versions of the Samba Active Directory LDAP server from 4.0.0 onwards
    are vulnerable to the disclosure of confidential attribute values, both of
    attributes where the schema SEARCH_FLAG_CONFIDENTIAL (0x80) searchFlags bit
    and where an explicit Access Control Entry has been specified on the


CVE Name CVE-2018-10858
CVE Name CVE-2018-10918
CVE Name CVE-2018-10919
CVE Name CVE-2018-1139
CVE Name CVE-2018-1140
URL      https://www.samba.org/samba/security/CVE-2018-10858.html
URL      https://www.samba.org/samba/security/CVE-2018-10918.html
URL      https://www.samba.org/samba/security/CVE-2018-10919.html
URL      https://www.samba.org/samba/security/CVE-2018-1139.html
URL      https://www.samba.org/samba/security/CVE-2018-1140.html

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Copyright (C) 2003-2005 Jacques Vidrine and contributors.

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