CVE-2009-0935 Denial of service in n/a

Medium 5.5 Published Updated

Local users can cause a denial of service in the Linux kernel by triggering a double mutex unlock in the inotify subsystem via an invalid read address.

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-2009-0935?

CVE-2009-0935 is a medium-severity denial of service vulnerability in Linux kernel, published on 18 Mar 2009. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The inotify_read function in the Linux kernel 2.6.27 to 2.6.27.13, 2.6.28 to 2.6.28.2, and 2.6.29-rc3 allows local users to cause a denial of service (OOPS) via a read with an invalid address to an inotify instance, which causes the device's event list mutex to be unlocked twice and prevents proper synchronization of a data structure for the inotify instance.

Weakness: CWE-667

Which versions are affected by CVE-2009-0935?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2009-0935?

No fix has been published for CVE-2009-0935 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-2009-0935 being exploited?

There is no known exploitation of CVE-2009-0935 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as GHSA-94f3-q8qm-3fq6.

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