CVE-2011-3982 Denial of service in n/a

Low 2.1 Published 5 Oct 2011 Updated 6 Aug 2024

Local users can cause a system hang in IBM AIX by generating excessive DMA I/O, exploiting a deadlock in the QLogic Fibre Channel driver.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2011-3982?

CVE-2011-3982 is a low-severity denial of service vulnerability in Ibm Aix, published on 5 Oct 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Fibre Channel driver for QLogic adapters in IBM AIX 6.1 and 7.1 does not properly handle DMA resource limitations, which allows local users to cause a denial of service (system hang) via vectors that generate a large amount of DMA I/O, related to a deadlock in timer processing across CPUs.

Weakness: CWE-399

Which versions are affected by CVE-2011-3982?

It affects 1 product.

Products include Ibm Aix.

How do I fix CVE-2011-3982?

No fix has been published for CVE-2011-3982 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-2011-3982 being exploited?

There is no known exploitation of CVE-2011-3982 in the wild and no public exploit code.

All Ibm Aix vulnerabilities

Sources

Also known as GHSA-v84m-2gvh-22v5.