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AUSCERT External Security Bulletin Redistribution
ESB-2016.0609
SOL81903701: Libpng vulnerability CVE-2015-8472
8 March 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Mitigation
CVE Names: CVE-2015-8472 CVE-2015-8126
Reference: ASB-2016.0004
ESB-2016.0591
ESB-2016.0585
ESB-2016.0574
ESB-2016.0569
ESB-2016.0552
ESB-2016.0551
ASB-2016.0018.2
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/81/sol81903701.html
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SOL81903701: Libpng vulnerability CVE-2015-8472
Security Advisory
Original Publication Date: 03/07/2016
Vulnerability Description
Buffer overflow in the png_set_PLTE function in libpng before 1.0.65, 1.1.x
and 1.2.x before 1.2.55, 1.3.x, 1.4.x before 1.4.18, 1.5.x before 1.5.25, and
1.6.x before 1.6.20 allows remote attackers to cause a denial of service
(application crash) or possibly have unspecified other impact via a small
bit-depth value in an IHDR (aka image header) chunk in a PNG image. NOTE: this
vulnerability exists because of an incomplete fix for CVE-2015-8126.
(CVE-2015-8472)
Impact
Allows unauthorized disclosure of information; Allows unauthorized
modification; Allows disruption of service.
Important: A low severity rating applies when the attack is considered to be
local only. A medium security rating applies when the APM module is enabled
and configured with a Citrix VDI backend.
Security Issue Status
F5 Product Development has assigned ID 562159 (BIG-IP), 563839 (BIG-IQ) and
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
table:
Product Versions known to be vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature
BIG-IP LTM 12.0.0 None Low Local libpng library
11.0.0 - 11.6.0
10.1.0 - 10.2.4
BIG-IP AAM 12.0.0 None Low Local libpng library
11.4.0 - 11.6.0
BIG-IP AFM 12.0.0 None Low Local libpng library
11.3.0 - 11.6.0
BIG-IP Analytics 12.0.0 None Low Local libpng library
11.0.0 - 11.6.0
BIG-IP APM 12.0.0 None Medium* Local libpng library
11.0.0 - 11.6.0
10.1.0 - 10.2.4
BIG-IP ASM 12.0.0 None Low Local libpng library
11.0.0 - 11.6.0
10.1.0 - 10.2.4
BIG-IP DNS 12.0.0 None Low Local libpng library
BIG-IP Edge Gateway None 11.0.0 - 11.3.0 Not vulnerable None
10.1.0 - 10.2.4
BIG-IP GTM 11.0.0 - 11.6.0 None Low Local libpng library
10.1.0 - 10.2.4
BIG-IP Link Controller 12.0.0 None Low Local libpng library
11.0.0 - 11.6.0
10.1.0 - 10.2.4
BIG-IP PEM 12.0.0 None Low Local libpng library
11.3.0 - 11.6.0
BIG-IP PSM 11.0.0 - 11.4.1 None Low Local libpng library
10.1.0 - 10.2.4
BIG-IP WebAccelerator 11.0.0 - 11.3.0 None Low Local libpng library
10.1.0 - 10.2.4
BIG-IP WOM 11.0.0 - 11.3.0 None Low Local libpng library
10.1.0 - 10.2.4
ARX None 6.0.0 - 6.4.0 Not vulnerable None
Enterprise Manager 3.0.0 - 3.1.1 None Low Local libpng library
FirePass None 7.0.0 Not vulnerable None
6.0.0 - 6.1.0
BIG-IQ Cloud 4.0.0 - 4.5.0 None Low Local libpng library
BIG-IQ Device 4.2.0 - 4.5.0 None Low Local libpng library
BIG-IQ Security 4.0.0 - 4.5.0 None Low Local libpng library
BIG-IQ ADC 4.5.0 None Low Local libpng library
BIG-IQ Centralized
Management 4.6.0 None Low Local libpng library
BIG-IQ Cloud and
Orchestration 1.0.0 None Low Local libpng library
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 Not vulnerable None
3.3.2 - 3.5.1
Vulnerability Recommended Actions
* BIG-IP APM 10.1.0 - 11.2.1 have a Low severity rating, due to the lack of
VDI functionality. BIG-IP APM 11.3.0 and later may use the vulnerable
functionality under specific deployment scenarios. For more information, refer
to the description in the Impact section of this article.
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.
To mitigate this vulnerability for the BIG-IP APM system, ensure that remote
Citrix resources are trusted.
Impact of action: Performing the recommended mitigation 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
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
SOL15106: Managing BIG-IQ product hotfixes
SOL15113: BIG-IQ hotfix matrix
SOL6664: Obtaining and installing OPSWAT hotfixes
SOL10942: Installing OPSWAT hotfixes on BIG-IP APM systems
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