Cisco Cisco Firepower Management Center 4000 Release Notes

Version 5.2.0.6

Sourcefire 3D System Release Notes

23

Issues Resolved in Version 5.2.0.6

Improved system stability in cases where you applied an access control 

policy revision that changed the file inspection options in an access control 

rule. (132741)

Resolved an issue where setting the maximum transmission unit (MTU) of 

an inline set on a Series 2 or a virtual device to a value below 

1518

 caused a 

disruption in traffic. (134256)

Version 5.2.0.3

Resolved a NTP time synchronization issue between managed devices and 

Defense Centers. (121909)

Resolved an issue where, in some cases, FireSIGHT rule state 

recommendations did not generate if an intrusion rule variable contained a 

network object. (125910)

Resolved an issue where, in some cases, the eStreamer client failed to 

deserialize network discovery user events and the system generated an 

error message. (126827)

Resolved an issue where, after updating an appliance running Version 5.1.x 

of the Sourcefire 3D System and Version 2.0.3 of the Sourcefire User Agent 

to Version 5.2 of the Sourcefire 3D System, the system generated an 

extraneous health alert. (127082, 127265, 127724)

Resolved an issue where, if the system logged the only intrusion event 

associated with a connection as 

Would have dropped

, the associated 

connection logged with the incorrect action of 

Block

. (127141)

Resolved an issue where, in rare cases, the system detected a user login 

through network discovery but the Defense Center incompletely logged the 

user data. (127274)

Improved the stability of custom application detectors. (127309)

Resolved an issue where you could not replace one NetMod with another 

on devices managed by Defense Centers in a high availability configuration. 

(128091)

The system now notifies you upon intrusion policy commit if your intrusion 

policy contains invalid system default variable configurations. (129105)

Resolved an issue where changes to the system variable set from within an 

intrusion policy were not applied if the default action of your access control 

policy was a Sourcefire authored policy. (129179)

Improved the stability of the 

byte_extract

 keyword and the HTTP inspect 

preprocessor. (129329, 129843, 130005)

Resolved a hardware issue that, in rare cases, could cause a disruption in 

traffic. (130055)

Resolved a memory leak on managed devices that, in some cases, 

necessitated a system reboot. (130198)

Resolved a memory leak within the eStreamer client. (130478)