CVE-2013-3735 Denial of service in n/a
Attackers can cause a denial of service via memory consumption and application crash by submitting crafted function definitions to the PHP Zend Engine.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2013-3735?
CVE-2013-3735 is a high-severity denial of service vulnerability in Php Php, published on 31 May 2013. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Zend Engine in PHP before 5.4.16 RC1, and 5.5.0 before RC2, does not properly determine whether a parser error occurred, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash) via a crafted function definition, as demonstrated by an attack within a shared web-hosting environment. NOTE: the vendor's http://php.net/security-note.php page says "for critical security situations you should be using OS-level security by running multiple web servers each as their own user id.
Weakness: CWE-20
Which versions are affected by CVE-2013-3735?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2013-3735?
No fix has been published for CVE-2013-3735 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2013-3735 being exploited?
There is no known exploitation of CVE-2013-3735 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-5jh5-7283-3xvx.