CVE-2022-21123 Information disclosure in Intel(R) Processors

What is CVE-2022-21123?

CVE-2022-21123 is a medium-severity vulnerability in Debian Debian Linux, published on 15 Jun 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Weakness: CWE-459

Which versions are affected by CVE-2022-21123?

It affects 7 products.

Products include Debian Debian Linux, Fedoraproject Fedora, Intel Sgx Dcap, Intel Sgx Psw, Intel Sgx Sdk, Vmware Esxi and 1 more.

How do I fix CVE-2022-21123?

Apply the vendor's patch.

Is CVE-2022-21123 being exploited?

There is no known exploitation of CVE-2022-21123 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as ALPINE-CVE-2022-21123, DEBIAN-CVE-2022-21123, GHSA-4jx7-c67v-r2v7, UBUNTU-CVE-2022-21123.