CVE-2022-43505 Denial of service in Intel(R) Processors

What is CVE-2022-43505?

CVE-2022-43505 is a medium-severity denial of service vulnerability in Intel(R) Processors, published on 11 Aug 2023. 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 the BIOS firmware for some Intel(R) Processors may allow a privileged user to potentially enable denial of service via local access.

Weakness: CWE-691

Which versions are affected by CVE-2022-43505?

It affects 906 products.

Products include Intel Atom C3308 Firmware, Intel Atom C3336 Firmware, Intel Atom C3338 Firmware, Intel Atom C3338r Firmware, Intel Atom C3436l Firmware, Intel Atom C3508 Firmware and 900 more.

How do I fix CVE-2022-43505?

No fix has been published for CVE-2022-43505 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-2022-43505 being exploited?

There is no known exploitation of CVE-2022-43505 in the wild and no public exploit code.

Other vulnerabilities in Intel(R) Processors

• CVE-2021-0116 Memory corruption in Intel(R) Processors High 7.8
• CVE-2021-0117 Privilege escalation in Intel(R) Processors High 7.8
• CVE-2021-0156 Privilege escalation in Intel(R) Processors High 7.8
• CVE-2022-37343 Privilege escalation in Intel(R) Processors High 7.2
• CVE-2021-0118 Memory corruption in Intel(R) Processors Medium 6.7

Sources

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

Also known as GHSA-gfmh-65v3-86w5.