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AUSCERT External Security Bulletin Redistribution
ESB-2016.2788
SOL68785753: ImageMagick vulnerability CVE-2015-8898
22 November 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 BIG-IP AAM
F5 BIG-IP WebAccelerator
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Denial of Service -- Existing Account
Resolution: Mitigation
CVE Names: CVE-2015-8898
Reference: ESB-2016.1791
ESB-2016.1705
ESB-2016.1535
Original Bulletin:
https://support.f5.com/kb/en-us/solutions/public/k/68/sol68785753.html
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SOL68785753: ImageMagick vulnerability CVE-2015-8898
Security Advisory
Original Publication Date: 11/21/2016
Vulnerability Description
** RESERVED ** This candidate has been reserved by an organization or
individual that will use it when announcing a new security problem. When the
candidate has been publicized, the details for this candidate will be
provided. (CVE-2015-8898)
Impact
BIG-IP systems that use a WebAcceleration profile configured with the Image
Optimization settings (BIG-IP AAM and BIG-IP WebAccelerator) are vulnerable to
this issue. An attacker using specially crafted image format files could cause
memory corruption and, potentially, run arbitrary code with restricted user
privileges, resulting in a denial- of -service (DoS) attack or an application
restart.
Security Issue Status
F5 Product Development has assigned ID 599858 (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 AAM 12.0.0 - 12.1.1 None Low WebAcceleration profile configured with Image Optimization
11.4.0 - 11.6.1
BIG-IP WebAccelerator 11.2.1 10.2.1 - 10.2.4 Low WebAcceleration profile configured with Image Optimization
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 this vulnerability, you can disable image optimization by the
BIG-IP AAM or BIG-IP WebAccelerator policy, or ensure that only trusted image
files are processed by controlling access to image files on pool members.
Impact of action: Performing the recommended action 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
The Accelerating Images with Image Optimization chapter of the BIG-IP
Acceleration: Implementations guide
Note: For information about how to locate F5 product guides, refer to
SOL12453464: Finding product documentation on AskF5.
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