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Category:   Device (Router/Bridge/Hub)  >   F5 BIG-IP Vendors:   F5 Networks
F5 BIG-IP Double Free Memory Error in TMM Lets Remote Users Deny Service
SecurityTracker Alert ID:  1039949
SecurityTracker URL:  http://securitytracker.com/id/1039949
CVE Reference:   CVE-2017-6166   (Links to External Site)
Date:  Dec 1 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 12.0.0 - 12.1.1
Description:   A vulnerability was reported in F5 BIG-IP. A remote user can cause denial of service conditions on the target system.

A remote user can send specially crafted fragmented data to trigger a double-free memory error in the Traffic Management Microkernel (TMM) and cause the TMM to crash, interrupting traffic processing while the TMM restarts.

Systems with a virtual server configured with a FastL4 profile are affected.


Impact:   A remote user can interrupt traffic processing on the target system.
Solution:   The vendor has issued a fix.

The vendor advisory is available at:

https://support.f5.com/csp/article/K65615624

Vendor URL:  support.f5.com/csp/article/K65615624 (Links to External Site)
Cause:   Access control error

Message History:   None.


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