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 listed version is older than the version you are currently running, or if the table does not list any version in the column, 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 system, you should permit management access to F5 products only over a secure network, and limit shell access to trusted users. For more information, refer to SOL13309: Restricting access to the Configuration utility by source IP address (11.x) and SOL13092: Overview of securing access to the BIG-IP system.

To determine the status of the udf kernel module, you can use thelsmod | grep -i udf Linux command from the BIG-IP command line. Output will appear similar to the following when theudf module is loaded:

lsmod | grep -i udf

udf 67267 0
crc_itu_t 1669 1 udf

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