CVE-2009-4443 Denial of service in n/a

Medium 4.3 Published 28 Dec 2009 Updated 7 Aug 2024

Remote attackers can cause a denial of service in Sun Java System Directory Server by sending crafted persistent search requests that trigger a thread loop.

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-2009-4443?

CVE-2009-4443 is a medium-severity denial of service vulnerability in n/a, published on 28 Dec 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unspecified vulnerability in the psearch (aka persistent search) functionality in Directory Proxy Server (DPS) in Sun Java System Directory Server Enterprise Edition 6.0 through 6.3.1 allows remote attackers to cause a denial of service (psearch outage) by using a crafted psearch client to send requests that trigger a psearch thread loop, aka Bug Id 6855978.

Which versions are affected by CVE-2009-4443?

It affects 1 product.

Products include Sun Java System Directory Server.

How do I fix CVE-2009-4443?

No fix has been published for CVE-2009-4443 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-2009-4443 being exploited?

There is no known exploitation of CVE-2009-4443 in the wild and no public exploit code.

Sources

Also known as GHSA-c8fp-pw4c-fccq.