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Category:   Device (Storage)  >   IBM Storwize Vendors:   IBM
(IBM Issues Fix for IBM Storwize V7000 Unified) Samba Multiple Flaws Let Remote Users Access Data and Files, Obtain Potentially Sensitive Information, and Deny Service
SecurityTracker Alert ID:  1036251
SecurityTracker URL:  http://securitytracker.com/id/1036251
CVE Reference:   CVE-2015-5252   (Links to External Site)
Date:  Jul 8 2016
Impact:   Denial of service via network, Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): V7000 Unified; 1.5, 1.6
Description:   Multiple vulnerabilities were reported in Samba. A remote user can access data on the target system. A remote user can consume excessive CPU resources on the target system. A remote user can cause the target system to crash. A remote user can obtain files on the target system. A remote user can obtain potentially sensitive information on the target system. IBM Storwize V7000 Unified is affected.

A remote user can send a specially crafted request to the target Samba LDAP server to consume excessive CPU resources on the target system and cause the LDAP server to become unresponsive [CVE-2015-3223]. Versions 4.0.0 through 4.3.2 are affected.

Thilo Uttendorfer of Linux Information Systems AG reported this vulnerability.

The smbd server does not properly verify symbolic links (symlinks). In certain situations, a remote user can access files located outside of the exported share path [CVE-2015-5252]. Versions 3.0.0 through 4.3.2 are affected.

Jan 'Yenya' Kasprzak and the Computer Systems Unit team at Faculty of Informatics, Masaryk University reported this vulnerability.

The system does not properly negotiate signing when establishing an encrypted connection. A remote user that can conduct a man-in-the-middle attack can downgrade the connection and then connect via an unsigned, unencrypted connection [CVE-2015-5296]. Versions 3.2.0 through 4.3.2 are affected.

Stefan Metzmacher of SerNet (www.sernet.com) and the Samba Team reported this vulnerability.

The vfs_shadow_copy2 module does not properly enforce access controls. A remote user without the DIRECTORY_LIST access rights can view the current snapshots [CVE-2015-5299]. Versions 3.2.0 through 4.3.2 are affected.

A remote user can send specially crafted packets to cause the LDAP server in the target samba daemon process to return portions of heap memory [CVE-2015-5330]. Versions 4.0.0 through 4.3.2 are affected.

Douglas Bagnall of Catalyst (www.catalyst.net.nz) reported this vulnerability.

A remote authenticated non-administrative user can bypass the quota limit and create excessive accounts on the target system [CVE-2015-8467]. Versions 4.0.0 through 4.3.2 are affected.

A domain environment with Samba and Windows Active Directory Domain Controllers is affected.

Impact:   A remote user can obtain snapshot data on the target system.

A remote user can consume excessive CPU resources on the target system and cause the target LDAP service to become unresponsive.

A remote user can cause the target system to crash.

A remote user can obtain files on the target system that are located outside of the share path.

A remote user can obtain potentially sensitive information on the target system.

Solution:   IBM has issued a fix for CVE-2015-5252 for IBM Storwize V7000 Unified.

The IBM advisory is available at:

http://www-01.ibm.com/support/docview.wss?uid=ssg1S1005810

Vendor URL:  www-01.ibm.com/support/docview.wss?uid=ssg1S1005810 (Links to External Site)
Cause:   Access control error, Resource error

Message History:   This archive entry is a follow-up to the message listed below.
Dec 18 2015 Samba Multiple Flaws Let Remote Users Access Data and Files, Obtain Potentially Sensitive Information, and Deny Service



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