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             AUSCERT External Security Bulletin Redistribution

               SOL15637: GnuTLS vulnerability CVE-2013-2116
                              7 October 2014


        AusCERT Security Bulletin Summary

Product:           BIG-IP products
                   Enterprise Manager
                   BIG-IQ products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2013-2116  

Reference:         ESB-2013.0982

Original Bulletin: 

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SOL15637: GnuTLS vulnerability CVE-2013-2116

Security AdvisorySecurity Advisory

Original Publication Date: 10/06/2014


The _gnutls_ciphertext2compressed function in lib/gnutls_cipher.c in GnuTLS 
2.12.23 allows remote attackers to cause a denial of service (buffer over-read
and crash) via a crafted padding length. NOTE: this might be due to an 
incorrect fix for CVE-2013-0169. (CVE-2013-2116)


An attacker may be able to cause a denial-of-service (DoS) attack.


F5 Product Development has assigned ID 413968 (BIG-IP), 480426 (BIG-IQ), and 
480427 (Enterprise Manager) 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 to be vulnerable 	Versions known to be not vulnerable 		Vulnerable component or feature

BIG-IP LTM 		11.0.0 - 11.4.1				11.5.0 - 11.6.0					GnuTLS server*	
			10.0.0 - 10.2.4

BIG-IP AAM 		11.4.0 - 11.4.1				11.5.0 - 11.6.0					GnuTLS server*

BIG-IP AFM 		11.3.0 - 11.4.1 			11.5.0 - 11.6.0					GnuTLS server*

BIG-IP Analytics 	11.0.0 - 11.4.1 			11.5.0 - 11.6.0					GnuTLS server*

BIG-IP APM 		11.0.0 - 11.4.1				11.5.0 - 11.6.0					GnuTLS server*	
			10.1.0 - 10.2.4 

BIG-IP ASM 		11.0.0 - 11.4.1				11.5.0 - 11.6.0					GnuTLS server*	
			10.0.0 - 10.2.4 

BIG-IP Edge Gateway	11.0.0 - 11.3.0				None 						None
			10.1.0 - 10.2.4 

BIG-IP GTM 		11.0.0 - 11.4.1				11.5.0 - 11.6.0					GnuTLS server*
			10.0.0 - 10.2.4 

BIG-IP Link Controller 	11.0.0 - 11.4.1				11.5.0 - 11.6.0 				GnuTLS server*
			10.0.0 - 10.2.4

BIG-IP PEM 		11.3.0 - 11.4.1				11.5.0 - 11.6.0 				GnuTLS server*

BIG-IP PSM 		11.0.0 - 11.4.1				None 						GnuTLS server*
			10.0.0 - 10.2.4 

BIG-IP WebAccelerator 	11.0.0 - 11.3.0				None 						GnuTLS server*
			10.0.0 - 10.2.4 

BIG-IP WOM 		11.0.0 - 11.3.0				None 						GnuTLS server*
			10.0.0 - 10.2.4

ARX 			None 					6.0.0 - 6.4.0					None

Enterprise Manager 	3.0.0 - 3.1.1				None 						GnuTLS server*
			2.1.0 - 2.3.0

FirePass 		None 					7.0.0						None
								6.0.0 - 6.1.0

BIG-IQ Cloud 		4.0.0 - 4.3.0				4.4.0						GnuTLS server*

BIG-IQ Device 		4.2.0 - 4.3.0				4.4.0						GnuTLS server*

BIG-IQ Security 	4.0.0 - 4.3.0				4.4.0						GnuTLS server*

*F5 Product Development has determined that the affected BIG-IP, BIG-IQ, and 
Enterprise Manager versions ship with vulnerable GnuTLS code. However, the 
vulnerable code is not used by default on these BIG-IP, BIG-IQ, or Enterprise
Manager systems. These products are only vulnerable if a GnuTLS server was 
manually configured.

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.

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)

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