CVE-2017-0296 Memory corruption in Microsoft Windows

High 7.8 Published 15 Jun 2017 Updated 5 Aug 2024

An attacker can elevate privileges by exploiting a buffer overflow in the Windows TDX driver due to missing length checks.

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-2017-0296?

CVE-2017-0296 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 15 Jun 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Microsoft Windows 7 SP1, Windows Server 2008 SP2 and R2 SP1, Windows 8.1 and Windows RT 8.1, Windows Server 2012 and R2, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to elevate privilege when tdx.sys fails to check the length of a buffer prior to copying memory to it, aka "Windows TDX Elevation of Privilege Vulnerability".

Weakness: CWE-120

Which versions are affected by CVE-2017-0296?

It affects 6 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016.

How do I fix CVE-2017-0296?

No fix has been published for CVE-2017-0296 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-2017-0296 being exploited?

There is no known exploitation of CVE-2017-0296 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-7969-wgqw-hhgv.