CVE-2018-15311: Medium severity riverbed steelapp traffic manager vulnerability

Published Oct 10, 2018
·
Updated

When F5 BIG-IP 13.0.0-13.1.0.5, 12.1.0-12.1.3.5, 11.6.0-11.6.3.2, or 11.5.1-11.5.6 is processing specially crafted TCP traffic with the Large Receive Offload (LRO) feature enabled, TMM may crash, leading to a failover event. This vulnerability is not exposed unless LRO is enabled, so most affected customers will be on 13.1.x. LRO has been available since 11.4.0 but is not enabled by default until 13.1.0.

Affected Software

52 affected components
F5 Big-ip Local Traffic Manager>=11.5.1<=11.5.6
F5 Big-ip Local Traffic Manager>=11.6.0.0<=11.6.3.2
F5 Big-ip Local Traffic Manager>=12.1.0.0<=12.1.3.5
F5 Big-ip Local Traffic Manager>=13.0.0.0<=13.1.0.5
F5 Big-ip Application Acceleration Manager>=11.5.1<=11.5.6
F5 Big-ip Application Acceleration Manager>=11.6.0.0<=11.6.3.2
F5 Big-ip Application Acceleration Manager>=12.1.0.0<=12.1.3.5
F5 Big-ip Application Acceleration Manager>=13.0.0.0<=13.1.0.5
F5 BIG-IP Advanced Firewall Manager>=11.5.1<=11.5.6
F5 BIG-IP Advanced Firewall Manager>=11.6.0.0<=11.6.3.2
F5 BIG-IP Advanced Firewall Manager>=12.1.0.0<=12.1.3.5
F5 BIG-IP Advanced Firewall Manager>=13.0.0.0<=13.1.0.5
F5 BIG-IP Analytics>=11.5.1<=11.5.6
F5 BIG-IP Analytics>=11.6.0.0<=11.6.3.2
F5 BIG-IP Analytics>=12.1.0.0<=12.1.3.5
F5 BIG-IP Analytics>=13.0.0.0<=13.1.0.5
F5 BIG-IP Access Policy Manager>=11.5.1<=11.5.6
F5 BIG-IP Access Policy Manager>=11.6.0.0<=11.6.3.2
F5 BIG-IP Access Policy Manager>=12.1.0.0<=12.1.3.5
F5 BIG-IP Access Policy Manager>=13.0.0.0<=13.1.0.5
F5 BIG-IP Application Security Manager>=11.5.1<=11.5.6
F5 BIG-IP Application Security Manager>=11.6.0.0<=11.6.3.2
F5 BIG-IP Application Security Manager>=12.1.0.0<=12.1.3.5
F5 BIG-IP Application Security Manager>=13.0.0.0<=13.1.0.5
F5 Big-ip Domain Name System>=11.5.1<=11.5.6
F5 Big-ip Domain Name System>=11.6.0.0<=11.6.3.2
F5 Big-ip Domain Name System>=12.1.0.0<=12.1.3.5
F5 Big-ip Domain Name System>=13.0.0.0<=13.1.0.5
F5 BIG-IP Edge Gateway>=11.5.1<=11.5.6
F5 BIG-IP Edge Gateway>=11.6.0.0<=11.6.3.2
F5 BIG-IP Edge Gateway>=12.1.0.0<=12.1.3.5
F5 BIG-IP Edge Gateway>=13.0.0.0<=13.1.0.5
F5 Big-ip Fraud Protection Service>=11.5.1<=11.5.6
F5 Big-ip Fraud Protection Service>=11.6.0.0<=11.6.3.2
F5 Big-ip Fraud Protection Service>=12.1.0.0<=12.1.3.5
F5 Big-ip Fraud Protection Service>=13.0.0.0<=13.1.0.5
F5 Big-ip Global Traffic Manager>=11.5.1<=11.5.6
F5 Big-ip Global Traffic Manager>=11.6.0.0<=11.6.3.2
F5 Big-ip Global Traffic Manager>=12.1.0.0<=12.1.3.5
F5 Big-ip Global Traffic Manager>=13.0.0.0<=13.1.0.5
F5 Big-ip Link Controller>=11.5.1<=11.5.6
F5 Big-ip Link Controller>=11.6.0.0<=11.6.3.2
F5 Big-ip Link Controller>=12.1.0.0<=12.1.3.5
F5 Big-ip Link Controller>=13.0.0.0<=13.1.0.5
F5 Big-ip Policy Enforcement Manager>=11.5.1<=11.5.6
F5 Big-ip Policy Enforcement Manager>=11.6.0.0<=11.6.3.2
F5 Big-ip Policy Enforcement Manager>=12.1.0.0<=12.1.3.5
F5 Big-ip Policy Enforcement Manager>=13.0.0.0<=13.1.0.5
F5 Big-ip Webaccelerator>=11.5.1<=11.5.6
F5 Big-ip Webaccelerator>=11.6.0.0<=11.6.3.2
F5 Big-ip Webaccelerator>=12.1.0.0<=12.1.3.5
F5 Big-ip Webaccelerator>=13.0.0.0<=13.1.0.5

Event History

Oct 10, 2018
CVE Published
via MITRE·02:00 PM
Data Sourced
via MITRE·02:00 PM
DescriptionWeakness

Frequently Asked Questions

1

What is the severity of CVE-2018-15311?

The severity of CVE-2018-15311 is high due to the potential for TMM crashes leading to service interruptions.

2

How do I fix CVE-2018-15311?

To fix CVE-2018-15311, you should disable the Large Receive Offload (LRO) feature or apply the latest patches provided by F5.

3

What versions are affected by CVE-2018-15311?

CVE-2018-15311 affects F5 BIG-IP versions 11.5.1 through 11.6.3.2, 12.1.0 through 12.1.3.5, and 13.0.0 through 13.1.0.5.

4

Is CVE-2018-15311 exposed to all users?

CVE-2018-15311 is not exposed to all users, as it requires the LRO feature to be enabled to be vulnerable.

5

What systems are impacted by CVE-2018-15311?

CVE-2018-15311 impacts systems running F5 BIG-IP Local Traffic Manager, Application Acceleration Manager, and other associated products if the specified versions are in use.

Company

Resources

Contact

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