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Category:   Device (Storage)  >   IBM Storwize Vendors:   IBM
(IBM Issues Fix for IBM Storwize V7000 Unified) Libuser Bugs Let Local Users Deny Service and Gain Elevated Privileges
SecurityTracker Alert ID:  1033998
SecurityTracker URL:  http://securitytracker.com/id/1033998
CVE Reference:   CVE-2015-3245, CVE-2015-3246   (Links to External Site)
Date:  Oct 28 2015
Impact:   Denial of service via local system, Modification of system information, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): V7000 Unified; 1.5
Description:   Two vulnerabilities were reported in Libuser. A local user can cause denial of service conditions on the target system. A local user can obtain elevated privileges on the target system. IBM Storwize V7000 Unified is affected.

A local user can exploit a flaw in the userhelper program to add linefeed characters in the middle of '/etc/password' records, causing the file to become corrupt [CVE-2015-3245].

A local user can exploit a flaw in the way libuser updates the '/etc/passwd' file to gain root privileges on the target system [CVE-2015-3246].

Qualys reported these vulnerabilities.

Impact:   A local user can corrupt the '/etc/password' file to cause denial of service conditions on the target system.

A local user can obtain root privileges on the target system.

Solution:   IBM has issued a fix for IBM Storwize V7000 Unified (1.5.2.2).

The IBM advisory is available at:

https://www-304.ibm.com/support/docview.wss?uid=ssg1S1005336

Vendor URL:  www-304.ibm.com/support/docview.wss?uid=ssg1S1005336 (Links to External Site)
Cause:   Access control error, Input validation error

Message History:   This archive entry is a follow-up to the message listed below.
Jul 24 2015 Libuser Bugs Let Local Users Deny Service and Gain Elevated Privileges



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