CVE-2019-11868 Memory corruption in n/a

High 7.8 Published Updated

A vulnerability in SoftEther VPN Server allows arbitrary kernel memory writes via IOCTL, potentially leading to code execution or privilege escalation.

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-2019-11868?

CVE-2019-11868 is a high-severity memory corruption vulnerability in n/a, published on 29 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

See.sys, up to version 4.25, in SoftEther VPN Server versions 4.29 or older, allows a user to call an IOCTL specifying any kernel address to which arbitrary bytes are written to.

Weakness: CWE-787

Which versions are affected by CVE-2019-11868?

It affects 1 product.

Products include Softether See.sys.

How do I fix CVE-2019-11868?

No fix has been published for CVE-2019-11868 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-2019-11868 being exploited?

There is no known exploitation of CVE-2019-11868 in the wild and no public exploit code.

Sources

Also known as GHSA-fvwg-j6fx-cf57.

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