CVE-2021-0189 Privilege escalation in Intel(R) Processors

High 7.8 Published Updated

A privileged local attacker can exploit an out-of-range pointer offset in Intel processor BIOS firmware to escalate privileges.

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-2021-0189?

CVE-2021-0189 is a high-severity vulnerability in Intel(R) Processors, published on 12 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Use of out-of-range pointer offset in the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.

Weakness: CWE-119

Which versions are affected by CVE-2021-0189?

It affects 168 products.

Products include Intel Xeon Bronze 3204 Firmware, Intel Xeon Bronze 3206r Firmware, Intel Xeon E-2124 Firmware, Intel Xeon E-2124g Firmware, Intel Xeon E-2126g Firmware, Intel Xeon E-2134 Firmware and 162 more.

How do I fix CVE-2021-0189?

No fix has been published for CVE-2021-0189 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-0189 being exploited?

There is no known exploitation of CVE-2021-0189 in the wild and no public exploit code.

Sources

Also known as GHSA-6rrf-r6h8-jh4q.

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