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             AUSCERT External Security Bulletin Redistribution

           SOL15274: TCP reassembly vulnerability CVE-2014-3000
                                22 May 2014


        AusCERT Security Bulletin Summary

Product:           LineRate
Publisher:         F5
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data -- Remote/Unauthenticated
                   Denial of Service      -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3000  

Reference:         ESB-2014.0626

Original Bulletin: 

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SOL15274: TCP reassembly vulnerability CVE-2014-3000

Security Advisory

Original Publication Date: 05/20/2014


The TCP reassembly function in the inet module in FreeBSD 8.3 before p16, 8.4 
before p9, 9.1 before p12, 9.2 before p5, and 10.0 before p2 allows remote 
attackers to cause a denial of service (undefined memory access and system 
crash) or possibly read system memory via multiple crafted packets, related to 
moving a reassemble queue entry to the segment list when the queue is full. 


An attacker who can send a series of specifically-crafted packets with a 
connection could cause a denial-of-service (DoS) situation, and although 
extremely difficult, may be able to obtain a portion of kernel memory.


F5 Product Development has assigned ID LRS-24061 to this vulnerability, and 
has evaluated the currently supported releases for potential vulnerability.
To determine if your release is known to be vulnerable, the components or 
features that are affected by the vulnerability, and for information about 
releases or hotfixes that address the vulnerability, refer to the following 

Product                 Versions known          Versions known          Vulnerable component 
                        to be vulnerable        to be not vulnerable    or feature

BIG-IP LTM              None                    11.0.0 - 11.5.1         None 
                                                10.0.0 - 10.2.4
BIG-IP AAM              None                    11.4.0 - 11.5.1         None
BIG-IP AFM              None                    11.3.0 - 11.5.1         None
BIG-IP Analytics        None                    11.0.0 - 11.5.1         None
BIG-IP APM              None                    11.0.0 - 11.5.1         None
                                                10.1.0 - 10.2.4 
BIG-IP ASM              None                    11.0.0 - 11.5.1         None
                                                10.0.0 - 10.2.4
BIG-IP Edge Gateway     None                    11.0.0 - 11.3.0         None
                                                10.1.0 - 10.2.4         
BIG-IP GTM              None                    11.0.0 - 11.5.1         None 
                                                10.0.0 - 10.2.4 
BIG-IP Link Controller  None                    11.0.0 - 11.5.1         None
                                                10.0.0 - 10.2.4
BIG-IP PEM              None                    11.3.0 - 11.5.1         None
BIG-IP PSM              None                    11.0.0 - 11.4.1         None
                                                10.0.0 - 10.2.4 
BIG-IP WebAccelerator   None                    11.0.0 - 11.3.0         None
                                                10.0.0 - 10.2.4         
BIG-IP WOM              None                    11.0.0 - 11.3.0         None
                                                10.0.0 - 10.2.4
ARX                     None                    6.0.0 - 6.4.0           None
Enterprise Manager      None                    3.0.0 - 3.1.1           None
                                                2.1.0 - 2.3.0 
FirePass                None                    7.0.0                   None
                                                6.0.0 - 6.1.0
BIG-IQ Cloud            None                    4.0.0 - 4.3.0           None
BIG-IQ Device           None                    4.2.0 - 4.3.0           None
BIG-IQ Security         None                    4.0.0 - 4.3.0           None
LineRate                2.3.0                   2.3.1                   TCP stack
                        2.2.0 - 2.2.3           2.2.4
                                                1.6.0 - 1.6.3

Recommended action

If the previous table lists a version in the Versions known to be not 
vulnerable column, you can eliminate this vulnerability by upgrading to the 
listed version. If the table does not list any version in the column, then no 
upgrade candidate currently exists.

If your LineRate installation is behind a firewall, you may be able to 
configure the firewall to protect the LineRate proxy from this particular 
vulnerability. Consult your firewall documentation for TCP out-of-order 
packet support or TCP reassembly features. If your firewall can 
reassemble the packet stream before passing the traffic to your internal 
network, this workaround will ensure the vulnerability in the LineRate proxy 
cannot be triggered.

Impact of action: Performing the suggested workaround should not have a 
negative impact on your system..

Supplemental Information

   SOL9970: Subscribing to email notifications regarding F5 products
   SOL9957: Creating a custom RSS feed to view new and updated documents.
   SOL4602: Overview of the F5 security vulnerability response policy
   SOL4918: Overview of the F5 critical issue hotfix policy
   SOL167: Downloading software and firmware from F5
   SOL13123: Managing BIG-IP product hotfixes (11.x)
   SOL10025: Managing BIG-IP product hotfixes (10.x)
   SOL9502: BIG-IP hotfix matrix
   SOL10322: FirePass hotfix matrix
   SOL12766: ARX hotfix matrix
   SOL3430: Installing FirePass hotfixes
   SOL6664: Obtaining and installing OPSWAT hotfixes
   SOL10942: Installing OPSWAT hotfixes on BIG-IP APM systems

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