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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
(Ubuntu Issues Fix) Linux Kernel Error Handling Bug in mempolicy() and mbind compat() System Calls Lets Local Users View Portions of System Memory on the Target System
SecurityTracker Alert ID:  1039235
SecurityTracker URL:  http://securitytracker.com/id/1039235
CVE Reference:   CVE-2017-7616   (Links to External Site)
Date:  Aug 29 2017
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Ubuntu 14.04 LTS
Description:   A vulnerability was reported in the Linux kernel. A local user can obtain potentially sensitive information from system memory.

A local user can trigger an error handling flaw in the set_mempolicy() and mbind compat() system calls in 'mm/mempolicy.c' to obtain potentially sensitive information from uninitialized stack data on the target system.

Impact:   A local user can obtain potentially sensitive information from system memory on the target system.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

https://www.ubuntu.com/usn/usn-3406-1

Vendor URL:  www.ubuntu.com/usn/usn-3406-1 (Links to External Site)
Cause:   Exception handling error

Message History:   This archive entry is a follow-up to the message listed below.
May 17 2017 Linux Kernel Error Handling Bug in mempolicy() and mbind compat() System Calls Lets Local Users View Portions of System Memory on the Target System



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