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AUSCERT External Security Bulletin Redistribution
ESB-2018.2349
samba -- multiple vulnerabilities
15 August 2018
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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
ESB-2018.2346
ESB-2018.2257
Original Bulletin:
http://www.vuxml.org/freebsd/c4e9a427-9fc2-11e8-802a-000c29a1e3ec.html
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FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports
Collection
samba -- multiple vulnerabilities
Affected packages
samba46 < 4.6.16
samba47 < 4.7.9
samba48 < 4.8.4
Details
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
ntSecurityDescriptor.
References
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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