The libxml RSHUTDOWN function in PHP 5.x allows remote attackers to bypass the open_basedir protection mechanism and read arbitrary files via vectors involving a stream_close method call during use of a custom stream wrapper. (CVE-2012-1171)
None. No F5 products are affected by this vulnerability.
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 table does not list any version in the column, then no upgrade candidate currently exists.