CVE-2012-2137 Memory corruption in n/a

Medium 6.9 Published Updated

Local attackers can exploit a buffer overflow in the Linux kernel KVM subsystem to cause a crash or execute arbitrary code.

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-2012-2137?

CVE-2012-2137 is a medium-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 22 Jan 2013. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer overflow in virt/kvm/irq_comm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to Message Signaled Interrupts (MSI), irq routing entries, and an incorrect check by the setup_routing_entry function before invoking the kvm_set_irq function.

Weakness: CWE-119

Which versions are affected by CVE-2012-2137?

It affects 2 products.

Products include Canonical Ubuntu Linux, Linux kernel.

How do I fix CVE-2012-2137?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2012-2137 being exploited?

There is no known exploitation of CVE-2012-2137 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as DEBIAN-CVE-2012-2137, GHSA-v5cq-57h8-c596.

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