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AUSCERT External Security Bulletin Redistribution
ESB-2016.2455
sol24923910: LibTIFF vulnerability CVE-2016-3632
20 October 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 products
Publisher: F5 Networks
Operating System: Network Appliance
Virtualisation
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Mitigation
CVE Names: CVE-2016-3632
Reference: ESB-2016.1873
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/24/sol24923910.html
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sol24923910: LibTIFF vulnerability CVE-2016-3632
Security Advisory
Original Publication Date: 10/19/2016
Vulnerability Description
The _TIFFVGetField function in tif_dirinfo.c in LibTIFF 4.0.6 and earlier
allows remote attackers to cause a denial of service (out-of-bounds write)
or execute arbitrary code via a crafted TIFF image. (CVE-2016-3632)
Impact
An attacker can use specially-crafted TIFF files to execute arbitrary code
with the limited privileges of the image optimization process.
Security Issue Status
F5 Product Development has assigned ID 623093 (BIG-IP) to this 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 None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP AAM 12.0.0 - 12.1.1 None High LibTIFF
11.4.0 - 11.6.1
BIG-IP AFM None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
BIG-IP Analytics None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
11.2.1
BIG-IP APM None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP ASM None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP DNS None 12.0.0 - 12.1.1 Not vulnerable None
BIG-IP Edge Gateway None 11.2.1 Not vulnerable None
10.2.1 - 10.2.4
BIG-IP GTM None 11.4.0 - 11.6.1 Not vulnerable None
11.2.1
10.2.1 - 10.2.4
BIG-IP Link Controller None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
11.2.1
10.2.1 - 10.2.4
BIG-IP PEM None 12.0.0 - 12.1.1 Not vulnerable None
11.4.0 - 11.6.1
BIG-IP PSM None 11.4.0 - 11.4.1 Not vulnerable None
10.2.1 - 10.2.4
BIG-IP WebAccelerator 11.2.1 None High LibTIFF
10.2.1 - 10.2.4
BIG-IP WOM None 11.2.1 Not vulnerable None
10.2.1 - 10.2.4
BIG-IP WebSafe None 12.0.0 - 12.1.0 Not vulnerable None
11.6.0 - 11.6.1
ARX None 6.2.0 - 6.4.0 Not vulnerable None
Enterprise Manager None 3.1.1 Not vulnerable None
FirePass None 7.0.0 Not vulnerable None
BIG-IQ Cloud None 4.0.0 - 4.5.0 Not vulnerable None
BIG-IQ Device None 4.2.0 - 4.5.0 Not vulnerable None
BIG-IQ Security None 4.0.0 - 4.5.0 Not vulnerable None
BIG-IQ ADC None 4.5.0 Not vulnerable None
BIG-IQ Centralized Management None 5.0.0 - 5.1.0 Not vulnerable None
4.6.0
BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable None
F5 iWorkflow None 2.0.0 - 2.0.1 Not vulnerable None
LineRate None 2.5.0 - 2.6.1 Not vulnerable None
Traffix SDC None 5.0.0 Not vulnerable None
4.0.0 - 4.4.0
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.
Mitigation
To mitigate the risk posed by this vulnerability, you can disable image
optimization for TIFF files using the AAM or WebAccelerator policy, or
ensure that TIFF files processed by BIG-IP AAM and WebAccelerator cannot
be modified by attackers.
Impact of action: Performing the suggested mitigation should not have a
negative impact on your system.
For more information about disabling image optimization, refer to:
BIG-IP AAM: The Accelerating Images with Image Optimization chapter
of the BIG-IP Acceleration Implementations guide
BIG-IP WebAccelerator: The Accelerating Images with Image Optimization
chapter of the BIG-IP WebAccelerator System Implementations guide
Note: For information about how to locate F5 product guides, refer to
SOL12453464: Finding product documentation on AskF5.
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
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