CVE-2016-6240 Integer overflow in n/a

High 7.8 Published 7 Mar 2017 Updated 6 Aug 2024

Local attackers can execute arbitrary code with kernel privileges via an integer truncation error in the amap_alloc function.

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-2016-6240?

CVE-2016-6240 is a high-severity vulnerability in Openbsd Openbsd, published on 7 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer truncation error in the amap_alloc function in OpenBSD 5.8 and 5.9 allows local users to execute arbitrary code with kernel privileges via a large size value.

Weakness: CWE-189

Which versions are affected by CVE-2016-6240?

It affects 1 product.

Products include Openbsd Openbsd.

How do I fix CVE-2016-6240?

No fix has been published for CVE-2016-6240 yet. Limit exposure of the affected software until one is available.

Is CVE-2016-6240 being exploited?

There is no known exploitation of CVE-2016-6240 in the wild and no public exploit code.

All Openbsd Openbsd vulnerabilities

Sources

Also known as GHSA-gq6m-wj8f-rm96.