CVE-2021-33124 Memory corruption in Intel(R) Processors
A privileged local attacker can exploit an out-of-bounds write in Intel processor BIOS to escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33124?
CVE-2021-33124 is a medium-severity memory corruption 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
Out-of-bounds write in the BIOS authenticated code module for some Intel(R) Processors may allow a privileged user to potentially enable aescalation of privilege via local access.
Weakness: CWE-787
Which versions are affected by CVE-2021-33124?
It affects 673 products.
Products include Intel Core I3-1000g1 Firmware, Intel Core I3-1000g4 Firmware, Intel Core I3-1005g1 Firmware, Intel Core I3-10100 Firmware, Intel Core I3-10100e Firmware, Intel Core I3-10100f Firmware and 667 more.
How do I fix CVE-2021-33124?
No fix has been published for CVE-2021-33124 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-2021-33124 being exploited?
There is no known exploitation of CVE-2021-33124 in the wild and no public exploit code.
Other vulnerabilities in Intel(R) Processors
Sources
Also known as GHSA-g639-f2rm-mp66.