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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel epoll_ctl() Bug Lets Local Users Deny Service
SecurityTracker Alert ID:  1027237
SecurityTracker URL:  http://securitytracker.com/id/1027237
CVE Reference:   CVE-2012-3375   (Links to External Site)
Date:  Jul 10 2012
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.6.x
Description:   A vulnerability was reported in the Linux Kernel. A local user can cause denial of service conditions.

The Linux kernel's Event Poll (epoll) subsystem does not properly handle resource clean up when an ELOOP error code is returned. A local user can exploit this to cause the target system to crash.

Impact:   A local user can cause the target system to crash.
Solution:   The vendor has issued a source code fix, available at:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=13d518074a952d33d47c428419693f63389547e9

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

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 10 2012 (Red Hat Issues Fix) Linux Kernel epoll_ctl() Bug Lets Local Users Deny Service   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Aug 8 2012 (Red Hat Issues Fix) Linux Kernel epoll_ctl() Bug Lets Local Users Deny Service   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise MRG 2.1.



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