CVE-2017-15303 Memory corruption in n/a

High 7.8 Published Updated

Local attackers can exploit an arbitrary memory write in the CPU-Z kernel driver to escalate privileges and execute code.

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-2017-15303?

CVE-2017-15303 is a high-severity memory corruption vulnerability in n/a, published on 16 Oct 2017. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In CPUID CPU-Z before 1.43, there is an arbitrary memory write that results directly in elevation of privileges, because any program running on the local machine (while CPU-Z is running) can issue an ioctl 0x9C402430 call to the kernel-mode driver (e.g., cpuz141_x64.sys for version 1.41).

Weakness: CWE-787

Which versions are affected by CVE-2017-15303?

It affects 1 product.

Products include Cpuid Cpu-Z.

How do I fix CVE-2017-15303?

No fix has been published for CVE-2017-15303 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-2017-15303 being exploited?

There is no known exploitation of CVE-2017-15303 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-92jj-g6qw-xrrw.

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