CVE-2006-5178

Race condition in the symlink function in PHP 5.1.6 and earlier allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path after the open_basedir check and before the file is opened by the underlying system, as demonstrated by symlinking a symlink into a subdirectory, to point to a parent directory via .. (dot dot) sequences, and then unlinking the resulting symlink.

• php php (<= 5.1.6) • php php 4.0 • php php 4.0.1 • php php 4.0.2 • php php 4.0.3 • php php 4.0.4 • php php 4.0.5 • php php 4.0.6 • php php 4.0.7 • php php 4.1.0 • php php 4.1.1 • php php 4.1.2 • php php 4.2 • php php 4.2.0 • php php 4.2.1 • php php 4.2.2 • php php 4.2.3 • php php 4.3.0 • php php 4.3.1 • php php 4.3.2 • php php 4.3.3 • php php 4.3.4 • php php 4.3.5 • php php 4.3.6 • php php 4.3.7 • php php 4.3.8 • php php 4.3.9 • php php 4.3.10 • php php 4.3.11 • php php 4.4.0 • php php 4.4.1 • php php 4.4.2 • php php 4.4.3 • php php 4.4.4 • php php 5.0 • php php 5.0.0 • php php 5.0.1 • php php 5.0.2 • php php 5.0.3 • php php 5.0.4 • php php 5.0.5 • php php 5.1.0 • php php 5.1.1 • php php 5.1.2 • php php 5.1.3 • php php 5.1.4 • php php 5.1.5