CVE-2011-4621 Denial of service in n/a
Local users can cause a system hang via a looped application due to a clock-update optimization flaw in the Linux kernel.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-4621?
CVE-2011-4621 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 May 2012. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Linux kernel before 2.6.37 does not properly implement a certain clock-update optimization, which allows local users to cause a denial of service (system hang) via an application that executes code in a loop.
Weakness: CWE-835
Which versions are affected by CVE-2011-4621?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2011-4621?
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-2011-4621 being exploited?
There is no known exploitation of CVE-2011-4621 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as GHSA-pm23-x64q-p9f3.