CVE-2007-4783 Denial of service in n/a
Attackers can cause a denial of service in PHP applications via long strings in the iconv_substr function parameters.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-4783?
CVE-2007-4783 is a medium-severity denial of service vulnerability in Php Php, published on 10 Sep 2007. It can be exploited over the network, with no action from the victim.
Official description
The iconv_substr function in PHP 5.2.4 and earlier allows context-dependent attackers to cause (1) a denial of service (application crash) via a long string in the charset parameter, probably also requiring a long string in the str parameter; or (2) a denial of service (temporary application hang) via a long string in the str parameter. NOTE: this might not be a vulnerability in most web server environments that support multiple threads, unless these issues can be demonstrated for code execution.
Weakness: CWE-20
Which versions are affected by CVE-2007-4783?
It affects 1 product.
Products include Php Php.
How do I fix CVE-2007-4783?
Upgrade to a fixed version.
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-2007-4783 being exploited?
There is no known exploitation of CVE-2007-4783 in the wild and no public exploit code.
Other vulnerabilities in Php Php
Sources
Also known as GHSA-885x-fp24-cx7w.