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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel UDP Fragmentation Offload Race Condition Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1039162
SecurityTracker URL:  http://securitytracker.com/id/1039162
CVE Reference:   CVE-2017-1000112   (Links to External Site)
Date:  Aug 15 2017
Impact:   Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): commit e89e9cf539a2 (October 2005) and after
Description:   A vulnerability was reported in the Linux kernel. A local user can obtain elevated privileges on the target system.

A local user can exploit a race condition in the UDP Fragmentation Offload (UFO) code to execute arbitrary code on the target system with elevated privileges.

Andrey Konovalov reported this vulnerability.

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

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=85f1bd9a7b5a79d5baa8bf44af19658f7bf77bfa

Vendor URL:  www.kernel.org/ (Links to External Site)
Cause:   Access control error, State error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 15 2017 (Ubuntu Issues Fix) Linux Kernel UDP Fragmentation Offload Race Condition Lets Local Users Gain Elevated Privileges
Ubuntu has issued a fix for Ubuntu Linux 16.04 LTS.
Aug 16 2017 (Ubuntu Issues Fix) Linux Kernel UDP Fragmentation Offload Race Condition Lets Local Users Gain Elevated Privileges
Ubuntu has issued a fix for Ubuntu Linux 17.04.



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