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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel SCSI Generic Driver Integer Overflow Lets Local Users Obtain Root Privileges
SecurityTracker Alert ID:  1033521
SecurityTracker URL:  http://securitytracker.com/id/1033521
CVE Reference:   CVE-2015-5707   (Links to External Site)
Date:  Sep 9 2015
Impact:   Execution of arbitrary code via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.6.28 and later
Description:   A vulnerability was reported in the Linux Kernel. A local user can obtain elevated privileges on the target system.

A local user with write permissions on a SCSI generic device can trigger an integer overflow in the start_req() function in 'drivers/scsi/sg.c' to execute arbitrary code with kernel level privileges.

Impact:   A local user can obtain root privileges on the target system.
Solution:   The vendor has issued a source code fix, available at:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=451a2886b6bf90e2fb378f7c46c655450fb96e81

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdc81f45e9f57858da6351836507fbcf1b7583ee

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Boundary error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 9 2015 (Ubuntu Issues Fix) Linux Kernel SCSI Generic Driver Integer Overflow Lets Local Users Obtain Root Privileges
Ubuntu has issued a fix for Ubuntu Linux 15.04.
Sep 10 2015 (Ubuntu Issues Fix) Linux Kernel SCSI Generic Driver Integer Overflow Lets Local Users Obtain Root Privileges
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS.
Oct 2 2015 (Ubuntu Issues Fix) Linux Kernel SCSI Generic Driver Integer Overflow Lets Local Users Obtain Root Privileges
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS.



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