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Category:   OS (Linux)  >   Linux Kernel Vendors:   kernel.org
Linux Kernel Use-After-Free Memory Error in peer_wait_queue() Lets Local Users Cause Denial of Service Conditions on the Target System
SecurityTracker Alert ID:  1034557
SecurityTracker URL:  http://securitytracker.com/id/1034557
CVE Reference:   CVE-2013-7446   (Links to External Site)
Date:  Jan 4 2016
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 4.3.3
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 can trigger a use-after-free memory error in peer_wait_queue() to bypass AF_UNIX socket permissions or cause a system panic.

The vulnerability resides in 'net/unix/af_unix.c'.

Impact:   A local user can cause a kernel panic on the target system.
Solution:   The vendor has issued a fix (4.3.3) [in December 2015].

The vendor's advisory is available at:

http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.3

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.
Sep 12 2016 (Google Issues Fix for Google Android) Linux Kernel Use-After-Free Memory Error in peer_wait_queue() Lets Local Users Cause Denial of Service Conditions on the Target System
Google has issued a fix for Google Android.



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