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ESB-2016.0515 - [Appliance] F5 Products: Access privileged data - Remote with user interaction

Date: 29 February 2016
References: ESB-2015.2856  ESB-2015.3085  ESB-2016.0221  ESB-2016.0257  ESB-2016.0258  ESB-2016.0272  ESB-2016.0307  ESB-2016.0308  ESB-2016.0386  ESB-2016.0398  

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             AUSCERT External Security Bulletin Redistribution

    SOL21057235: libpng out-of-bounds read vulnerability CVE-2015-7981
                             29 February 2016


        AusCERT Security Bulletin Summary

Product:           F5 Products
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data -- Remote with User Interaction
Resolution:        Mitigation
CVE Names:         CVE-2015-7981  

Reference:         ESB-2016.0409

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

SOL21057235: libpng out-of-bounds read vulnerability CVE-2015-7981

Security Advisory

Original Publication Date: 02/26/2016

Vulnerability Description

The png_convert_to_rfc1123 function in png.c in libpng 1.0.x before 1.0.64, 
1.2.x before 1.2.54, and 1.4.x before 1.4.17 allows remote attackers to obtain
sensitive process memory information via crafted tIME chunk data in an image 
file, which triggers an out-of-bounds read. (CVE-2015-7981)


A remote attacker can potentially take advantage of this flaw to cause 
disclosure of information from process memory.

Security Issue Status

F5 Product Development has assigned ID 562159 (BIG-IP), ID 563839 (BIG-IQ), 
and ID 563842 (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  	Versions known to  	Severity 	Vulnerable component 
			to be vulnerable	be not vulnerable			or feature

BIG-IP LTM 		12.0.0			None 			Low 		libpng
			11.0.0 - 11.6.0		
			10.1.0 - 10.2.4 	

BIG-IP AAM 		12.0.0
			11.4.0 - 11.6.0 	None 			Low 		libpng

BIG-IP AFM 		12.0.0
			11.3.0 - 11.6.0 	None 			Low 		libpng

BIG-IP Analytics 	12.0.0
			11.0.0 - 11.6.0 	None 			Low 		libpng

BIG-IP APM 		12.0.0
			11.4.0 - 11.6.0 	None 			Medium 		libpng

			11.0.0 - 11.3.0
			10.1.0 - 10.2.4 	None 			Low 		libpng

BIG-IP ASM 		12.0.0			None 			Low 		libpng
			11.0.0 - 11.6.0
			10.1.0 - 10.2.4 

BIG-IP DNS 		12.0.0 			None 			Low 		libpng

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

BIG-IP GTM 		11.0.0 - 11.6.0
			10.1.0 - 10.2.4 	None 			Low 		libpng

BIG-IP Link Controller 	12.0.0			None 			Low 		libpng
			11.0.0 - 11.6.0
			10.1.0 - 10.2.4 	

BIG-IP PEM 		12.0.0
			11.3.0 - 11.6.0 	None 			Low 		libpng

BIG-IP PSM 		11.0.0 - 11.4.1
			10.1.0 - 10.2.4 	None 			Low 		libpng

BIG-IP WebAccelerator 	11.0.0 - 11.3.0
			10.1.0 - 10.2.4 	None 			Low 		libpng

BIG-IP WOM 		11.0.0 - 11.3.0
			10.1.0 - 10.2.4 	None 			Low 		libpng

ARX 			None 			6.2.0 - 6.4.0 		Not vulnerable 	None

Enterprise Manager 	3.0.0 - 3.1.1 		None 			Low 		libpng

FirePass 		None 			7.0.0 			Not vulnerable 	None

BIG-IQ Cloud 		4.0.0 - 4.5.0 		None 			Low 		libpng

BIG-IQ Device 		4.2.0 - 4.5.0 		None 			Low 		libpng

BIG-IQ Security 	4.0.0 - 4.5.0 		None 			Low 		libpng

BIG-IQ ADC 		4.5.0 			None 			Low 		libpng

BIG-IQ Centralized 
 Management 		4.6.0 			None 			Low 		libpng

BIG-IQ Cloud and 
Orchestration 		1.0.0			None 			Low 		libpng

LineRate 		None 			2.5.0 - 2.6.1 		Not vulnerable 	None

F5 WebSafe 		None 			1.0.0 			Not vulnerable 	None

Traffix SDC 		None 			4.0.0 - 4.4.0
						3.3.2 - 3.5.1 		Not vulnerable 	None

Vulnerability Recommended Actions

If you are running a version listed in the Versions known to be vulnerable 
column, you can eliminate this vulnerability by upgrading to a version listed
in the Versions known to be not vulnerable column. If the table lists only an
older version than what you are currently running, or does not list a 
non-vulnerable version, then no upgrade candidate currently exists.

F5 responds to vulnerabilities in accordance with the Severity values 
published in the previous table. The Severity values and other security 
vulnerability parameters are defined in SOL4602: Overview of the F5 security 
vulnerability response policy.


Versions affected that have Low in the Severity column, contain the vulnerable
software, but can be exploited only by a local attacker. Versions affected 
that have Medium in the Severity column, may be vulnerable remotely if the 
BIG-IP APM access policy is configured to provide access to trusted Citrix 
resources, and the backend server intentionally serves malicious content.

BIG-IQ and Enterprise Manager

While affected versions contain the vulnerable software, the vulnerability has
limited local exposure when the rrdtool utility is used to generate PNG 

Supplemental Information

SOL9970: Subscribing to email notifications regarding F5 products

SOL9957: Creating a custom RSS feed to view new and updated documents

SOL4918: Overview of the F5 critical issue hotfix policy

SOL167: Downloading software and firmware from F5

SOL13123: Managing BIG-IP product hotfixes (11.x - 12.x)

SOL10025: Managing BIG-IP product hotfixes (10.x)

SOL9502: BIG-IP hotfix matrix

- --------------------------END INCLUDED TEXT--------------------

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