CVE-2007-1522

Summary

Double free vulnerability in the session extension in PHP 5.2.0 and 5.2.1 allows context-dependent attackers to execute arbitrary code via illegal characters in a session identifier, which is rejected by an internal session storage module, which calls the session identifier generator with an improper environment, leading to code execution when the generator is interrupted, as demonstrated by triggering a memory limit violation or certain PHP errors.

Impact & exploitability

AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Additional information

• NVD record
• http://www.php-security.org/MOPB/MOPB-23-2007.htmlAdvisory
• http://secunia.com/advisories/24505
• http://secunia.com/advisories/25056
• http://www.novell.com/linux/security/advisories/2007_32_php.html
• http://www.securityfocus.com/bid/22971
• http://www.vupen.com/english/advisories/2007/0960