CVE-2018-8342 Memory corruption in Windows 7

High 7.8 Published Updated

An attacker can exploit a buffer overflow in the Windows NDIS driver to gain elevated privileges on affected systems.

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-2018-8342?

CVE-2018-8342 is a high-severity memory corruption vulnerability in Microsoft Windows 7, published on 15 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An elevation of privilege vulnerability exists in the Network Driver Interface Specification (NDIS) when ndis.sys fails to check the length of a buffer prior to copying memory to it, aka "Windows NDIS Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8343.

Weakness: CWE-120

Which versions are affected by CVE-2018-8342?

It affects 2 products.

Products include Microsoft Windows 7, Microsoft Windows Server 2008.

How do I fix CVE-2018-8342?

No fix has been published for CVE-2018-8342 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-2018-8342 being exploited?

There is no known exploitation of CVE-2018-8342 in the wild and no public exploit code.

All Microsoft Windows 7 vulnerabilities

Sources

Also known as GHSA-x42x-mfx7-r4ph.

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