CVE-2011-4132 Denial of service in n/a

Low 2.1 Published Updated

Local attackers can cause a kernel crash by mounting a crafted ext3 or ext4 filesystem image with an invalid log value.

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-2011-4132?

CVE-2011-4132 is a low-severity denial of service vulnerability in Linux kernel, published on 27 Jan 2012. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The cleanup_journal_tail function in the Journaling Block Device (JBD) functionality in the Linux kernel 2.6 allows local users to cause a denial of service (assertion error and kernel oops) via an ext3 or ext4 image with an "invalid log first block value."

Weakness: CWE-20

Which versions are affected by CVE-2011-4132?

It affects 2 products.

Products include Linux kernel, Suse Linux Enterprise Server.

How do I fix CVE-2011-4132?

Apply the vendor's patch.

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-2011-4132 being exploited?

There is no known exploitation of CVE-2011-4132 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as GHSA-cwc2-grvm-9422.

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