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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Flaw Lets Local Users Bypass Address Space Layout Randomization Protection on the Target System
SecurityTracker Alert ID:  1035506
SecurityTracker URL:  http://securitytracker.com/id/1035506
CVE Reference:   CVE-2016-3672   (Links to External Site)
Date:  Apr 7 2016
Impact:   Modification of system information
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux kernel. A local user can bypass security restrictions.

A local user that can run a 32-bit application on an x86 system can set the RLIMIT_STACK resource to unlimited to bypass address space layout randomization (ASLR) protection on the target system.

The original advisory is available at:

http://hmarco.org/bugs/CVE-2016-3672-Unlimiting-the-stack-not-longer-disables-ASLR.html

Impact:   A local user can bypass address space layout randomization (ASLR) protection on the target system.
Solution:   A proposed patch is available at:

http://git.kernel.org/cgit/linux/kernel/git/tip/tip.git/commit/?id=8b8addf891de8a00e4d39fc32f93f7c5eb8feceb

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

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 6 2016 (Ubuntu Issues Fix) Linux Kernel Flaw Lets Local Users Bypass Address Space Layout Randomization Protection on the Target System
Ubuntu has issued a fix for Ubuntu Linux 16.04 LTS.
Jun 14 2016 (Ubuntu Issues Fix) Linux Kernel Flaw Lets Local Users Bypass Address Space Layout Randomization Protection on the Target System
Ubuntu has issued a fix for Ubuntu Linux 15.10.



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