CVE-2016-7039 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can cause a denial of service via crafted packets triggering the GRO path in the Linux kernel IP stack.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2016-7039?

CVE-2016-7039 is a high-severity denial of service vulnerability in Linux kernel, published on 16 Oct 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The IP stack in the Linux kernel through 4.8.2 allows remote attackers to cause a denial of service (stack consumption and panic) or possibly have unspecified other impact by triggering use of the GRO path for large crafted packets, as demonstrated by packets that contain only VLAN headers, a related issue to CVE-2016-8666.

Weakness: CWE-399

Which versions are affected by CVE-2016-7039?

It affects 3 products.

Products include Linux kernel, Oracle Linux, Oracle Vm Server.

How do I fix CVE-2016-7039?

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-2016-7039 being exploited?

There is no known exploitation of CVE-2016-7039 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2016-7039, GHSA-3rm9-rm94-6p3r, UBUNTU-CVE-2016-7039.

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