CVE-2015-5156 Memory corruption in n/a

Medium 6.1 Published Updated

Guest OS users can cause a denial of service via buffer overflow in the Linux kernel virtio_net driver by sending crafted fragmented packets.

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-2015-5156?

CVE-2015-5156 is a medium-severity memory corruption vulnerability in Linux kernel, published on 19 Oct 2015. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.

Weakness: CWE-119

Which versions are affected by CVE-2015-5156?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2015-5156?

Upgrade to a fixed version.

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

Is CVE-2015-5156 being exploited?

There is no known exploitation of CVE-2015-5156 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-5156, GHSA-hm78-pq45-736h, UBUNTU-CVE-2015-5156.

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