CVE-2019-14558 Denial of service in Intel BIOS

What is CVE-2019-14558?

CVE-2019-14558 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 5 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Insufficient control flow management in BIOS firmware for 8th, 9th, 10th Generation Intel(R) Core(TM), Intel(R) Celeron(R) Processor 4000 & 5000 Series Processors may allow an authenticated user to potentially enable denial of service via adjacent access.

Which versions are affected by CVE-2019-14558?

It affects 2 products.

Products include Debian Debian Linux, Intel Bios.

How do I fix CVE-2019-14558?

Apply the vendor's patch.

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-2019-14558 being exploited?

There is no known exploitation of CVE-2019-14558 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-14558, GHSA-q8x8-jp4q-9cjj, UBUNTU-CVE-2019-14558.