CVE-2018-3990 Memory corruption in n/a

Critical 9.3 Published Updated

A buffer overflow in the WibuKey.sys kernel driver allows local attackers to corrupt memory and escalate privileges via a crafted IRP request.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2018-3990?

CVE-2018-3990 is a critical memory corruption vulnerability in n/a, published on 5 Feb 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An exploitable pool corruption vulnerability exists in the 0x8200E804 IOCTL handler functionality of WIBU-SYSTEMS WibuKey.sys Version 6.40 (Build 2400). A specially crafted IRP request can cause a buffer overflow, resulting in kernel memory corruption and, potentially, privilege escalation. An attacker can send an IRP request to trigger this vulnerability.

Weakness: CWE-119

Which versions are affected by CVE-2018-3990?

It affects 1 product.

Products include Wibu Wibukey.

How do I fix CVE-2018-3990?

No fix has been published for CVE-2018-3990 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2018-3990 being exploited?

There is no known exploitation of CVE-2018-3990 in the wild and no public exploit code.

Sources

Also known as GHSA-gpw6-98jf-9gjm.

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