CVE-2018-14775 Denial of service in n/a

Medium 5.5 Published 1 Aug 2018 Updated 5 Aug 2024

A local attacker can crash the OpenBSD system by exploiting incorrect I/O port access control in the i386 architecture kernel.

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-2018-14775?

CVE-2018-14775 is a medium-severity denial of service vulnerability in Openbsd Openbsd, published on 1 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

tss_alloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service (system crash) due to incorrect I/O port access control on the i386 architecture.

Weakness: CWE-20

Which versions are affected by CVE-2018-14775?

It affects 1 product.

Products include Openbsd Openbsd.

How do I fix CVE-2018-14775?

No fix has been published for CVE-2018-14775 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-14775 being exploited?

There is no known exploitation of CVE-2018-14775 in the wild and no public exploit code.

All Openbsd Openbsd vulnerabilities

Sources

Also known as GHSA-69h5-9vj8-c9pg.