CVE-2006-5178

Publication date 10 October 2006

Last updated 17 July 2025

Ubuntu priority

Medium

Why this priority?

Description

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.

Status

No maintained releases are affected by this CVE.

Package Ubuntu Release Status
php4 9.10 karmic Not in release
9.04 jaunty Not in release
8.10 intrepid Not in release
8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Not in release
6.10 edgy Ignored end of life, was needed
6.06 LTS dapper Ignored end of life

References

Other references