F5 Networks BIG-IP : BIG-IP FastL4 TMM vulnerability (K65615624)

Medium Nessus Plugin ID 104415


The remote device is missing a vendor-supplied security patch.


In BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Link Controller, PEM, and WebSafe software 12.0.0 to 12.1.1, in some cases the Traffic Management Microkernel (TMM) may crash when processing fragmented packets. This vulnerability affects TMM through a virtual server configured with a FastL4 profile. Traffic processing is disrupted while TMM restarts. If the affected BIG-IP system is configured as part of a device group, it will trigger a failover to the peer device.


A remote attacker may be able to cause a BIG-IP system to produce a core file, disrupting the flow of traffic and causing a failover to a standby system, if configured. BIG-IP logs will show the notice panic:
packet_free: double free! error when TMM crashes.


Upgrade to one of the non-vulnerable versions listed in the F5 Solution K65615624.

See Also


Plugin Details

Severity: Medium

ID: 104415

File Name: f5_bigip_SOL65615624.nasl

Version: $Revision: 3.4 $

Type: local

Published: 2017/11/07

Modified: 2018/01/25

Dependencies: 76940

Risk Information

Risk Factor: Medium


Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C


Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Vulnerability Information

CPE: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_acceleration_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_application_visibility_and_reporting, cpe:/a:f5:big-ip_link_controller, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/11/06

Reference Information

CVE: CVE-2017-6166

OSVDB: 168851