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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
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:  1038503
SecurityTracker URL:  http://securitytracker.com/id/1038503
CVE Reference:   CVE-2017-7616   (Links to External Site)
Date:  May 17 2017
Impact:   Disclosure of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

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:   The vendor has issued a source code fix, available at:

https://github.com/torvalds/linux/commit/cf01fb9985e8deb25ccf0ea54d916b8871ae0e62

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

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 29 2017 (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
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS.



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