CVE-2019-0603 Memory corruption in Windows

High 7.5 Published Updated

Remote attackers can execute arbitrary code with elevated permissions on Windows systems via a crafted request to the TFTP Server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-0603?

CVE-2019-0603 is a high-severity memory corruption vulnerability in Microsoft Windows 10, published on 8 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A remote code execution vulnerability exists in the way that Windows Deployment Services TFTP Server handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system. To exploit the vulnerability, an attacker could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions. The security update addresses the vulnerability by correcting how Windows Deployment Services TFTP Server handles objects in memory, aka 'Windows Deployment Services TFTP Server Remote Code Execution Vulnerability'.

Which versions are affected by CVE-2019-0603?

It affects 8 products.

Products include Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008, Microsoft Windows Server 2012 and 2 more.

How do I fix CVE-2019-0603?

No fix has been published for CVE-2019-0603 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-2019-0603 being exploited?

There is no known exploitation of CVE-2019-0603 in the wild and no public exploit code.

All Microsoft Windows 10 vulnerabilities

Sources

Also known as GHSA-pxq2-q57j-ww2c.

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