Vulnerability Details : CVE-2017-6166
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.
Products affected by CVE-2017-6166
- cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*
- F5 » Big-ip Application Acceleration ManagerVersions from including (>=) 12.0.0 and up to, including, (<=) 12.1.1cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:linerate:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_ltm:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_afm:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_apm:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_asm:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_pem:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:big-ip_dns:*:*:*:*:*:*:*:*
- cpe:2.3:a:f5:f5_websafe:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-6166
0.31%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-6166
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.9
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.2
|
3.6
|
NIST |
CWE ids for CVE-2017-6166
-
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-6166
-
http://www.securitytracker.com/id/1039949
F5 BIG-IP Double Free Memory Error in TMM Lets Remote Users Deny Service - SecurityTrackerThird Party Advisory;VDB Entry
-
http://www.securityfocus.com/bid/102264
Multiple F5 BIG-IP Products CVE-2017-6166 Remote Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://support.f5.com/csp/article/K65615624
Issue Tracking;Mitigation;Vendor Advisory
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