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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Filesystem Mounting Bug Lets Local Users Cause Denial of Service Conditions or Obtain Elevated Privileges on the Target System
SecurityTracker Alert ID:  1034559
SecurityTracker URL:  http://securitytracker.com/id/1034559
CVE Reference:   CVE-2015-7509   (Links to External Site)
Date:  Jan 4 2016
Impact:   Denial of service via local system, Root access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux kernel. A local user can cause denial of service conditions on the target system. A local user may be able to obtain elevated privileges on the target system.

A physically local user can mount a specially crafted no-journal filesystem to cause the target system to crash or to potentially gain elevated privileges.

Impact:   A local user can cause denial of service conditions on the target system.

A local user may be able to obtain elevated privileges on the target system.

Solution:   The vendor has issued a source code fix [in 2012], available at:

https://github.com/torvalds/linux/commit/c9b92530a723ac5ef8e352885a1862b18f31b2f5

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

Message History:   This archive entry has one or more follow-up message(s) listed below.
May 11 2016 (Red Hat Issues Fix) Linux Kernel Filesystem Mounting Bug Lets Local Users Cause Denial of Service Conditions or Obtain Elevated Privileges on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 6.



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