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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel fcap Lets Local Users Bypass Personality Flag Restrictions
SecurityTracker Alert ID:  1027072
SecurityTracker URL:  http://securitytracker.com/id/1027072
CVE Reference:   CVE-2012-2123   (Links to External Site)
Date:  May 17 2012
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Linux Kernel. A local user may be able to bypass access restrictions.

If an application is made privileged via file system capabilities, certain personality flags are not properly cleared. A local user may be able to exploit this to bypass the restrictions.

Steve Grubb reported this vulnerability.

Impact:   A local user may be able to bypass access restrictions.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

http://git.kernel.org/linus/d52fc5dde171f030170a6cb78034d166b13c9445

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 17 2012 (Red Hat Issues Fix) Linux Kernel fcap Lets Local Users Bypass Personality Flag Restrictions
Red Hat has issued a fix for Red Hat Enterprise MRG 2.1.



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