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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1803
                     samba -- multiple vulnerabilities
                                20 May 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           samba
Publisher:         FreeBSD
Operating System:  FreeBSD
Impact/Access:     Provide Misleading Information -- Existing Account
                   Access Confidential Data       -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-16860 CVE-2019-3880 

Reference:         ESB-2019.1742
                   ESB-2019.1707
                   ESB-2019.1178
                   ESB-2019.1176

Original Bulletin: 
   http://www.vuxml.org/freebsd/793a0072-7822-11e9-81e2-005056a311d1.html

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samba -- multiple vulnerabilities

Affected packages:
 		
samba46 	<= 	4.6.16
samba47 	<= 	4.7.12
samba48 	< 	4.8.12
samba49 	< 	4.9.8
samba410 	< 	4.10.3

Details:

VuXML ID 	793a0072-7822-11e9-81e2-005056a311d1
Discovery 	2019-05-14
Entry 	2019-05-14

The samba project reports:

The checksum validation in the S4U2Self handler in the embedded Heimdal KDC 
did not first confirm that the checksum was keyed, allowing replacement of 
the requested target (client) principal

Authenticated users with write permission can trigger a symlink traversal 
to write or detect files outside the Samba share.

References:

CVE-2018-16860
CVE-2019-3880
https://www.samba.org/samba/security/CVE-2018-16860.html
https://www.samba.org/samba/security/CVE-2019-3880.html

Copyright 2003-2005 Jacques Vidrine and contributors.
Please see the source of this document for full copyright information.

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===========================================================================
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