Two vulnerabilities have been identified in PHP, which could be exploited by malicious users to bypass security restrictions and execute arbitrary commands.
The first issue is due to a double free error inthe "session_regenerate_id()" function when generating new session identifiers, which could be exploited by attackers to bypass PHP restrictions and execute arbitrary commands on the underlying operating system via a malicious PHP script.
The second vulnerability is due to a double free error inthe "php_session_initialize()" function when rejecting session identifiers, which could be exploited by attackers to bypass PHP restrictions and execute arbitrary commands on the underlying operating system via a malicious PHP script.
Credits
Vulnerabilities reported by Stefan Esser
ChangeLog
2007-03-15 : Initial release
2007-05-02 : Updated Solution
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