CVE-2022-21123
hw: cpu: incomplete clean-up of multi-core shared buffers (aka SBDR)
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 14, 2022
Updated · June 28, 2026
Description
A flaw was found in hw. Incomplete cleanup of multi-core shared buffers for some Intel® Processors may allow an authenticated user to enable information disclosure via local access.
Statement
Red Hat has very limited to no visibility and control over binary blobs provided by third-party vendors. Red Hat relies heavily on the vendors to provide timely updates and information about included changes for this content and in most cases merely acts as a release vehicle between the third-party vendor and Red Hat customers with no possibility of influencing or even documenting the changes. Unless explicitly stated, the level of insight, oversight, and control Red Hat has does not meet the criteria required (in terms of Red Hat ownership of development processes, QA, and documentation) for releasing this content as RHSA. For more information please contact the binary content vendor.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation baser or stability.
CVSS / CWE
CVSS 3.1 · 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
CWE-459 · Incomplete Cleanup