CVE-2007-1522 Use after free in n/a
Attackers can execute arbitrary code via a double free vulnerability in the PHP session extension triggered by illegal session identifiers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-1522?
CVE-2007-1522 is a medium-severity use after free vulnerability in Php Php, published on 20 Mar 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2007-1522?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2007-1522?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2007-1522 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-1522 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-f434-223j-r8rm.